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Batch 12 - Call for Information

The Government of Canada is now collecting information from industry and other stakeholders for 16 substances in Batch 12 of the "Challenge" under the Chemicals Management Plan.

Why is the Government of Canada assessing these substances?

  • Approximately 200 substances were identified through the Categorization process as high priorities for assessment under the "Challenge" component of the Chemicals Management Plan.
  • There are 16 substances that have been assigned to Batch 12. These substances are industrial chemicals, which may be found in some consumer products. Three substances, carbon black, cristobalite and quartz, can also occur naturally as minerals.
  • Five of these substances were identified as a potential concern for human health based on their classification by international organizations for potential or known harm. Four of these substances were also identified as having a high potential of exposure and one substance, diphenylguanidine, as having a moderate potential for exposure to Canadians.
  • The other 11 substances were identified as a potential concern for the environment, based on the ecological Categorization criteria.
  • The last extensive information gathering effort by the Government of Canada for these substances dates back to 1984-1986.

What is the Government of Canada doing?

  • The "Challenge" involves collecting the new information and data required on the properties and uses of these substances from individuals and companies that manufacture, import or use the chemicals.
  • This information and data will be used by the Government of Canada to conduct evaluations based on science, called screening assessments.
  • The results of these screening assessments will help the Government of Canada decide if further actions may be necessary to protect the health of Canadians and their environment from any potential risks posed by these substances.

Substances in Batch 12 of the Challenge

Substances of Potential Concern for Human Health
CAS Registry Number* Substance DSL Name Common Name
102-06-7 Guanidine, N,N -diphenyl- Diphenylguanidine
1333-86-4 Carbon black Carbon black
14464-46-1 Cristobalite Cristobalite
14808-60-7 Quartz Quartz
68391-11-7 Pyridine, alkyl derivs. Pyridine alkyl derivatives

Substances of Potential Concern for the Environment
CAS Registry Number* Substance DSL Name Common Name
(where available)

* CAS Registry Number: Chemical Abstracts Service Registry Number. The Chemical Abstracts Service information is the property of the American Chemical Society and any use or redistribution, except as required in supporting regulatory requirements and/or for reports to the Government of Canada when the information and the reports are required by law or administrative policy, is not permitted without the prior, written permission of the American Chemical Society.

† DSL: Domestic Substances List; an inventory of approximately 23 000 substances manufactured in, imported into or used in Canada on a commercial scale. It is based on substances present in Canada, under certain conditions, between January 1, 1984 and December 31, 1986.

53-19-0 Benzene, 1-chloro-2-[2,2-dichloro-1-(4-chlorophenyl)ethyl]- Mitotane (O,P' DDD)
56-95-1 2,4,11,13-Tetraazatetradecanediimidamide, N,N' -bis(4-chlorophenyl)-3,12-diimino-, diacetate Chlorhexidine diacetate
107-51-7 Trisiloxane, octamethyl- MDM
116-66-5 1H-Indene, 2,3-dihydro-1,1,3,3,5-pentamethyl-4,6-dinitro- Musk moskene
515-03-7 1- Naphthalenepropanol, α-ethenyldecahydro-2-hydroxy-α,2,5,5,8a-pentamethyl-, [1R-[1a(R*),2ß,4aß,8aα]]- Sclareol
3555-47-3 Trisiloxane, 1,1,1,5,5,5-hexamethyl-3,3-bis[(trimethylsilyl)oxy]- M4Q
13080-86-9 Benzenamine, 4,4' -[(1-methylethylidene)bis(4,1-phenyleneoxy)]bis- BMBPB
59709-38-5 ß-Alanine, N-[4-[(2-bromo-6-chloro-4-nitrophenyl)azo]phenyl]-N-(3-methoxy-3-oxopropyl)-, methyl ester Disperse Yellow Brown
68583-58-4 Ethanamine, N-ethyl-N-hydroxy-, reaction products with hexamethylcyclotrisiloxane, silica and 1,1,1-trimethyl-N-(trimethylsilyl)silanamine HMSSA
68937-51-9 Silanamine, 1,1,1-trimethyl-N-(trimethylsilyl)-, reaction products with ammonia, octamethylcyclotetrasiloxane and silica OMSSA
101200-53-7 Pyridine, 2-[3-(3-chlorophenyl)propyl]- CPPP