From the Government of Canada:

On May 31, 2008, the Minister of the Environment and the Minister of Health released a Notice in the Canada Gazette for the sixth group of substances identified under the Challenge… Industry and interested stakeholders are invited to submit any information that may be used to inform risk assessment and to develop and benchmark best practices for risk management and product stewardship.

Substance Profiles for Batch 6 Substances

A. Substances identified as persistent, bioaccumulative, and inherently toxic to non-human organisms and believed to be in commercial use in Canada

  • 2-Naphthalenol, 1-[[4-(phenylazo)phenyl]azo]- CAS# 85-86-9
  • 2-Naphthalenol, 1-[(2-methoxyphenyl)azo]- CAS# 1229-55-6
  • 2,7-Naphthalenedisulfonic acid, 4-amino-3-[[4′-[(2,4-diaminophenyl)azo] [1,1′-biphenyl]-4-yl]azo] -5-hydroxy-6-(phenylazo)-, disodium salt
    CAS# 1937-37-7
  • 2-Naphthalenol, 1-[(2,4-dimethylphenyl)azo]- CAS# 3118-97-6
  • Phenol, 4-[[4-(phenylazo)phenyl]azo]- CAS# 6250-23-3
  • Phenol, 4-[[4-(phenylazo)-1-naphthalenyl]azo]- CAS# 6253-10-7
  • Phenol, 2-methyl-4-[[4-(phenylazo)phenyl]azo]- CAS# 6300-37-4
  • 2,7-Naphthalenedisulfonic acid, 3-[[2,2′-dimethyl-4′- [[4-[[(4-methylphenyl)sulfonyl]oxy]phenyl]azo] [1,1′-biphenyl]-4-yl]azo] -4-hydroxy-, disodium salt
    CAS# 6358-57-2
  • 1-Naphthalenol, 4-[(4-ethoxyphenyl)azo]- CAS# 6535-42-8
  • Butanamide, 2,2′-[(3,3′-dimethoxy[1,1′-biphenyl] -4,4′-diyl)bis(azo)] bis [N-(2-methylphenyl)-3-oxo- CAS# 7147-42-4
  • Phenol, 4-[[2-methoxy-4-[(4-nitrophenyl)azo]phenyl]azo]- CAS# 19800-42-1
  • Phenol, 4,4′-[1,4-phenylenebis(azo)]bis- CAS# 21811-64-3
  • Phenol, 4-[[2-methoxy-4-[(2-methoxyphenyl)azo]-5-methylphenyl]azo]- CAS# 93805-00-6

B. Substances identified as a high hazard to humans and presenting a high likelihood of exposure to individuals in Canada

  • Methane, chloro- CAS# 74-87-3
  • Benzene, (chloromethyl)- CAS# 100-44-7
  • 1-Propene, 3-chloro- CAS# 107-05-1
  • 1,2-Benzenedicarboxylic acid, bis(2-methoxyethyl) ester CAS# 117-82-8
  • 1,2-Benzenedicarboxylic acid, di-C7-11-branched and linear alkyl esters CAS# 68515-42-4**

** Due to international variations in the nomenclature used, the mixture 1,2-Benzenedicarboxylic acid, di-C7-11-branched and linear alkyl esters (CAS No. 68515-42-4) may also be represented by one or more of the following six substances:

  • 3648-20-2 (1,2-Benzenedicarboxylic acid, diundecyl ester);
  • 68515-44-6 (1,2-Benzenedicarboxylic acid, diheptyl ester, branched and linear);
  • 68515-45-7 (1,2-Benzenedicarboxylic acid, dinonyl ester, branched and linear);
  • 111381-89-6 (1,2-Benzenedicarboxylic acid, heptyl nonyl ester, branched and linear);
  • 111381-90-9 (1,2-Benzenedicarboxylic acid, heptyl undecyl ester, branched and linear);
  • 111381-91-0 (1,2-Benzenedicarboxylic acid, nonyl undecyl ester, branched and linear).

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