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List or group: Domestic Substances List (DSL)
Substance identifier: 68892-31-9
Substance identifier (2):
Substance name: 1,4-Benzenedisulfonic acid, 2-[[4-[[4-[(4,6-dichloro-1,3,5-triazin-2-yl)amino]-5-sulfo-1-naphthalenyl]azo]-2,5-dimethylphenyl]azo]-, trisodium salt
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 70161-17-0
Substance identifier (2):
Substance name: 1,4-Benzenedisulfonic acid, 2-[[4-[[4-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-5-sulfo-1-naphthalenyl]azo]-6-sulfo-1-naphthalenyl]azo]-, tetrasodium salt
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 70161-16-9
Substance identifier (2):
Substance name: 1,4-Benzenedisulfonic acid, 2-[[4-[[4-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-5-sulfo-1-naphthalenyl]azo]-7-sulfo-1-naphthalenyl]azo]-, tetrasodium salt
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 68806-24-6
Substance identifier (2):
Substance name: 1,4-Benzenedisulfonic acid, 2-[[4-[[4-[(4-amino-6-chloro-1,3,5-triazin-2-yl)amino]-7-sulfo-1-naphthalenyl]azo]-2,5-dimethylphenyl]azo]-, trisodium salt
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 72987-16-7
Substance identifier (2):
Substance name: 1,4-Benzenedisulfonic acid, 2-[[4-[[4-[(4-amino-9,10-dihydro-9,10-dioxo-3-sulfo-1-anthracenyl)amino]cyclohexyl]amino]-6-fluoro-1,3,5-triazin-2-yl]amino]-, potassium sodium salt
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 83399-85-3
Substance identifier (2):
Substance name: 1,4-Benzenedisulfonic acid, 2-[[4-[[4-[[(2,3-dichloro-6-quinoxalinyl)carbonyl]amino]-5-sulfo-1-naphthalenyl]azo]-7-sulfo-1-naphthalenyl]azo]-, lithium sodium salt
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 72639-37-3
Substance identifier (2):
Substance name: 1,4-Benzenedisulfonic acid, 2-[[4-[[4-[[(2,3-dichloro-6-quinoxalinyl)carbonyl]amino]-5-sulfo-1-naphthalenyl]azo]-7-sulfo-1-naphthalenyl]azo]-, tetrasodium salt
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 75150-14-0
Substance identifier (2):
Substance name: 1,4-Benzenedisulfonic acid, 2-[[4-[[4-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-6-sulfo-1-naphthalenyl]azo]-, ammonium sodium salt
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 2503-73-3
Substance identifier (2):
Substance name: 1,4-Benzenedisulfonic acid, 2-[[4-[[4-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-1-naphthalenyl]azo]-6-sulfo-1-naphthalenyl]azo]-, tetrasodium salt
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 6428-58-6
Substance identifier (2):
Substance name: 1,4-Benzenedisulfonic acid, 2-[[4-[[4-[[1-hydroxy-6-(phenylamino)-3-sulfo-2-naphthalenyl]azo]-7-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]-, tetrasodium salt
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 83399-95-5
Substance identifier (2):
Substance name: 1,4-Benzenedisulfonic acid, 2-[[6-[[4-fluoro-6-(phenylamino)-1,3,5-triazin-2-yl]amino]-1-hydroxy-3-sulfo-2-naphthalenyl]azo]-5-methoxy-, sodium salt
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 114565-67-2
Substance identifier (2):
Substance name: 1,4-benzenedisulfonic acid,2-[[6-[[4-[[2-]2-(ethenylsulfonyl)ethoxy]ethyl]amino}-6-fluoro-1,3,5-triazin-2yl]amino}-1-hydroxy-3-sulfo2-naphthyl]azo}-5-methyl-,trisodium salt
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was manufactured or imported during the transitional period (i.e. between January 1, 1987 and July 1, 1994) and was added to the DSL following a risk assessment by Environment and Climate Change Canada and Health Canada.
Recent publication(s): Canada Gazette Part II, Vol. 138, No. 12, June 16 2004, SOR/2004-149
Date published: 2004-06-16
Substance identifier: 124-20-9
Substance identifier (2):
Substance name: 1,4-Butanediamine, N-(3-aminopropyl)-
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 110-63-4
Substance identifier (2):
Substance name: 1,4-Butanediol
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 20163-90-0
Substance identifier (2):
Substance name: 1,4-Butanediol, 2,3-dibromo-
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 138, No. 3, February 11 2004, SOR/2004-7
Date published: 2004-02-11
Substance identifier: 90801-18-6
Substance identifier (2):
Substance name: 1,4-Butanediol, 2,3-dibromo-, (R,R)-
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 55-98-1
Substance identifier (2):
Substance name: 1,4-Butanediol, dimethanesulfonate
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 138, No. 3, February 11 2004, SOR/2004-7
Date published: 2004-02-11
Substance identifier: 25805-16-7
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with 1,1'-methylenebis[4-isocyanatobenzene]
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 148, No. 16, July 30 2014, SOR/2014-178
Date published: 2014-07-30
Substance identifier: 111325-20-3
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with 1,1'-methylenebis[4-isocyanatocyclohexane], methyloxirane and oxirane
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 158, No. 9, April 24 2024, SOR/2024-57
Date published: 2024-04-24
Substance identifier: 12421-1
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with 1,3-benzenedicarboxylic acid, 1,4-benzenedicarboxylic acid, alkanediol and e-caprolactone
Additional information: This substance is on the Domestic Substances List (DSL).

This substance is listed under its masked name and its Confidential Accession Number assigned by Environment and Climate Change Canada. Substances with confidential substance names are published with masked chemical or biological names, i.e. the masked name does not fully disclose the substance composition.

This substance was manufactured or imported during the transitional period (i.e. between January 1, 1987 and July 1, 1994) and was added to the DSL following a risk assessment by Environment and Climate Change Canada and Health Canada.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 137, No. 27, December 31 2003, SOR/2003-456
Date published: 2003-12-31
Substance identifier: 9043-71-4
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with 1,3-diisocyanatomethylbenzene and α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl)
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 50658-30-5
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with 1,3-diisocyanatomethylbenzene and α-hydro-ω-hydroxypoly[oxy(methyl-1,2-ethanediyl)]
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 425387-19-5
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with 1,3-diisocyanatomethylbenzene, 1,2-ethanediamine, α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl) and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, block
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.
Recent publication(s): Canada Gazette Part II, Vol. 159, No. 19, September 10, 2025, SOR/2025-177
Date published: 2025-09-10
Substance identifier: 9036-64-0
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with 1,3-diisocyanatomethylbenzene, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and α-hydro-ω-hydroxypoly[oxy(methyl-1,2-ethanediyl)]
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 87257-38-3
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with 1,3-diisocyanatomethylbenzene, α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl) and 1,1'-methylenebis[4-isocyanatocyclohexane]
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 125329-02-4
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with 1,3-diisocyanatomethylbenzene, α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl) and α-hydro-ω-hydroxypoly(oxy-1,2-ethanediyl)
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 139655-10-0
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with 1,3-diisocyanatomethylbenzene, α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl) and α-hydro-ω-hydroxypoly[oxy(methyl-1,2-ethanediyl)]
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 18795-3
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with 1,6-diisocyanatoalkane, α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl) and 1,1'-methylenebis[4-isocyanatocyclohexane]
Additional information: This substance is on the Domestic Substances List (DSL).

This substance is listed under its masked name and its Confidential Accession Number assigned by Environment and Climate Change Canada. Substances with confidential substance names are published with masked chemical or biological names, i.e. the masked name does not fully disclose the substance composition.

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 149, No. 5, March 11 2015, SOR/2015-47
Date published: 2015-03-11
Substance identifier: 111849-96-8
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with 5-amino-1,3,3-trimethylcyclohexanemethanamine, α-hydro-ω-hydroxypoly[oxy(methyl-1,2-ethanediyl)] and 1,1'-methylenebis[isocyanatobenzene], Me Et ketone oxime-blocked
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 16733-2
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with α-hydroxy-ω-hydroxypoly(oxy-1,4-butanediyl), 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and diamine
Additional information: This substance is on the Domestic Substances List (DSL).

This substance is listed under its masked name and its Confidential Accession Number assigned by Environment and Climate Change Canada. Substances with confidential substance names are published with masked chemical or biological names, i.e. the masked name does not fully disclose the substance composition.

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 138, No. 12, June 16 2004, SOR/2004-149
Date published: 2004-06-16
Substance identifier: 37205-91-7
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with α-hydro-ω-hydroxypoly [oxy(methyl-1,2-ethanediyl)] and 1,1'-methylenebis[4-isocyanatobenzene]
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 141, No. 4, February 21 2007, SOR/2007-28
Date published: 2007-02-21
Substance identifier: 52590-55-3
Substance identifier (2):
Substance name: 1,4-butanediol, polymer with α-hydro-ω-hydroxypoly(oxy-1,2-ethanediyl) and 1,1'-methylenebis [4-isocyanatobenzene]
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was manufactured or imported during the transitional period (i.e. between January 1, 1987 and July 1, 1994) and was added to the DSL following a risk assessment by Environment and Climate Change Canada and Health Canada.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 139, No. 12, June 15 2005, SOR/2005-161
Date published: 2005-06-15
Substance identifier: 9018-04-6
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl) and 1,1'-methylenebis[4-isocyanatobenzene]
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 59650-40-7
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with α-hydro-ω-hydroxypoly(oxy-1,4-butanediyl), 1,1'-methylenebis[4-isocyanatobenzene], methyloxirane and oxirane
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 129783-25-1
Substance identifier (2):
Substance name: 1,4-Butanediol, polymer with α-hydro-ω-hydroxypoly[oxy(methyl-1,2-ethanediyl)] and 1,1'-methylenebis[4-isocyanatobenzene], glycidol-blocked
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 5450-96-4
Substance identifier (2):
Substance name: 1,4-Butanedisulfonic acid, 1,4-dihydroxy-, disodium salt
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 13418-8
Substance identifier (2):
Substance name: 1,4-Carbomonocycledimethanol, polymer with 2-oxepanone, 2-ethyl-2-hydroxymethyl-1,3-propanediol, 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid, 2,2-dimethyl-1,3-propanediol, dodecanedioic acid, 2,2'-iminobisethanol and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane
Additional information: This substance is on the Domestic Substances List (DSL).

This substance is listed under its masked name and its Confidential Accession Number assigned by Environment and Climate Change Canada. Substances with confidential substance names are published with masked chemical or biological names, i.e. the masked name does not fully disclose the substance composition.

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 137, No. 24, November 19 2003, SOR/2003-354
Date published: 2003-11-19
Substance identifier: 99-85-4
Substance identifier (2):
Substance name: 1,4-Cyclohexadiene, 1-methyl-4-(1-methylethyl)-
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 84-58-2
Substance identifier (2):
Substance name: 1,4-Cyclohexadiene-1,2-dicarbonitrile, 4,5-dichloro-3,6-dioxo-
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 1076-97-7
Substance identifier (2):
Substance name: 1,4-Cyclohexanedicarboxylic acid
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was manufactured or imported during the transitional period (i.e. between January 1, 1987 and July 1, 1994) and was added to the DSL following a risk assessment by Environment and Climate Change Canada and Health Canada.
Recent publication(s): Canada Gazette Part II, Vol. 141, No. 11, May 30 2007, SOR/2007-97
Date published: 2007-05-30
Substance identifier: 72903-27-6
Substance identifier (2):
Substance name: 1,4-Cyclohexanedicarboxylic acid, 1,4-diethyl ester
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.
Recent publication(s): Canada Gazette Part II, Vol. 139, No. 5, March 09 2005, SOR/2005-44
Date published: 2005-03-09
Substance identifier: 94-60-0
Substance identifier (2):
Substance name: 1,4-Cyclohexanedicarboxylic acid, dimethyl ester
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL as an “Existing Substance” given that it was in commerce in Canada between 1984 and 1986 or it was in a product regulated under the Food and Drugs Act that was in commerce in Canada between 1987 and 2001.
Recent publication(s): Canada Gazette Part II, Vol. 128, No. 9, May 4, 1994, SOR/94-311
Date published: 1994-05-04
Substance identifier: 13769-8
Substance identifier (2):
Substance name: 1,4-Cyclohexanedicarboxylic acid, dimethyl ester, polymer with 5-sulfo-1,3-benzenedicarboxylic acid, bis[2-(2-substituted ethoxyethyl)] ester, sodium salt, 2,2'-oxybisethanol, 1,4-cyclohexanedimethanol and 2-ethyl-2-(hydroxymethyl)-1,3-propanediol
Additional information: This substance is on the Domestic Substances List (DSL).

This substance is listed under its masked name and its Confidential Accession Number assigned by Environment and Climate Change Canada. Substances with confidential substance names are published with masked chemical or biological names, i.e. the masked name does not fully disclose the substance composition.

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.
Recent publication(s): Canada Gazette Part II, Vol. 139, No. 7, April 06 2005, SOR/2005-56
Date published: 2005-04-06
Substance identifier: 672288-39-0
Substance identifier (2):
Substance name: 1,4-Cyclohexanedicarboxylic acid, polymer with (2E)-2-butenedioic acid, 2-butyl-2-ethyl-1,3-propanediol, 2,2-dimethyl-1,3-propanediol, hexahydro-1,3-isobenzofurandione and 1,6-hexanediol
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 140, No. 9, May 03 2006, SOR/2006-72
Date published: 2006-05-03
Substance identifier: 17869-4
Substance identifier (2):
Substance name: 1,4-Cyclohexanedicarboxylic acid, polymer with 1,2-ethanediamine, hexanedioic acid, 1,6-hexanediol, branched alkanoic acid polyol and 1,1'-methylenebis(4-isocyanatocyclohexane), compound with N,N-diethylethanamine
Additional information: This substance is on the Domestic Substances List (DSL).

This substance is listed under its masked name and its Confidential Accession Number assigned by Environment and Climate Change Canada. Substances with confidential substance names are published with masked chemical or biological names, i.e. the masked name does not fully disclose the substance composition.

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 142, No. 9, April 30 2008, SOR/2008-113
Date published: 2008-04-30
Substance identifier: 145417-47-6
Substance identifier (2):
Substance name: 1,4-Cyclohexanedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 2,5-furandione and 1,2-propanediol
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 151, No. 5, March 08 2017, SOR/2017-24
Date published: 2017-03-08
Substance identifier: 13961-2
Substance identifier (2):
Substance name: 1,4-Cyclohexanedicarboxylic acid, polymer with 2-alkyl-2-ethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexahydro-1,3-isobenzofurandione and 1,6-hexanediol
Additional information: This substance is on the Domestic Substances List (DSL).

This substance is listed under its masked name and its Confidential Accession Number assigned by Environment and Climate Change Canada. Substances with confidential substance names are published with masked chemical or biological names, i.e. the masked name does not fully disclose the substance composition.

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 160, No. 19, September 23, 2026, SOR/2026-190
Date published: 2026-09-23
Substance identifier: 16981-7
Substance identifier (2):
Substance name: 1,4-Cyclohexanedicarboxylic acid, polymer with 2-butyl-2-ethyl-1,3-propanediol, diamine, 3-hydroxy-2-(hydroxymethyl)-2-methylpropanoic acid, 1,4-cyclohexanedimethanol, and 1,1-methylenebis[4-isocyanatocyclohexane]
Additional information: This substance is on the Domestic Substances List (DSL).

This substance is listed under its masked name and its Confidential Accession Number assigned by Environment and Climate Change Canada. Substances with confidential substance names are published with masked chemical or biological names, i.e. the masked name does not fully disclose the substance composition.

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 138, No. 14, July 14 2004, SOR/2004-159
Date published: 2004-07-14
Substance identifier: 190280-70-7
Substance identifier (2):
Substance name: 1,4-Cyclohexanedicarboxylic acid, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, hexanedioic acid and 1,6-hexanediol
Additional information: This substance is on the Domestic Substances List (DSL).

This substance was manufactured or imported during the transitional period (i.e. between January 1, 1987 and July 1, 1994) and was added to the DSL following a risk assessment by Environment and Climate Change Canada and Health Canada.
Recent publication(s): Canada Gazette Part II, Vol. 133, No. 25, December 08 1999, SOR/99-446
Date published: 1999-12-08
Substance identifier: 13772-2
Substance identifier (2):
Substance name: 1,4-Cyclohexanedicarboxylic acid, polymer with branched alkyldiol and maleic anhydride
Additional information: This substance is on the Domestic Substances List (DSL).

This substance is listed under its masked name and its Confidential Accession Number assigned by Environment and Climate Change Canada. Substances with confidential substance names are published with masked chemical or biological names, i.e. the masked name does not fully disclose the substance composition.

This substance was added to the DSL following notification in accordance with the New Substances Notification Regulations (Chemicals and Polymers) or the New Substances Notification Regulations (Organisms) and assessment under CEPA.

This substance meets the Reduced Regulatory Requirement (RRR) polymer criteria prescribed by the New Substances Notification Regulations (Chemicals and Polymers). Any form of the substance that does not meet the RRR polymer criteria is subject to notification under those regulations prior to import or manufacture.

For more information on the regulatory requirements for new chemicals and polymers, refer to the Guidance document for the New Substances Notification Regulations (Chemicals and Polymers).
Recent publication(s): Canada Gazette Part II, Vol. 159, No. 27, December 31, 2025, SOR/2025-252
Date published: 2025-12-31
Date modified: