Substituted Alkyl Imidazolines Group

These substances were identified for action under the Chemicals Management Plan (CMP). The screening assessment focuses on 4 of 8 substances referred to collectively as the Substituted Alkyl Imidazolines Group.

Summary of publications
Substance Group CAS RN DSL name Public comments on the draft screening assessment Final screening assessment Conclusion on section 64 criteria Follow-up activities
Substituted Alkyl Imidazolines Group 95-38-5 1H-Imidazole-1-ethanol, 2-(8-heptadecenyl)-4,5-dihydro- HTML HTML Does not meet None planned at this time
27136-73-8 1H-Imidazole-1-ethanol, 2-(heptadecenyl)-4,5-dihydro-
68442-97-7Footnote 1,Footnote 2 1H-Imidazole-1-ethanamine, 4,5-dihydro-, 2-nortall-oil alkyl derivs.
68966-38-1 1H-Imidazole-1-ethanol, 4,5-dihydro-2-isoheptadecyl-
Footnote 1

This CAS RN is a UVCB (unknown or variable composition, complex reaction products, or biological materials).

Return to footnote 1 referrer

Footnote 2

This substance was not identified under subsection 73(1) of the Canadian Environmental Protection Act, 1999 but was included in this assessment as it was considered a priority on the basis of other human health concerns.

Return to footnote 2 referrer

Date Activity
December 26, 2020 Publication of the final screening assessment. The related notice was published in the Canada Gazette, Part I: Vol. 154, No. 52.
June 22, 2019 Publication and start of 60-day public comment period on the draft screening assessment. The related notice was published in the Canada Gazette, Part I: Vol. 153, No. 25.


Four other substances were identified as being a part of the Alkyl Imidazolines and Salts Group at the outset of the third phase of the CMP. Two of these substances were subsequently determined to be of low concern to both human health and the environment, through other approaches. The conclusion for CAS RN 21652-27-7 is provided in the Final Screening Assessment of Substances Identified as Being of Low Concern using the Ecological Risk Classification of Organic Substances and the Threshold of Toxicological Concern (TTC)-based Approach for Certain Substances. The conclusion for CAS RN 31135-57-6 is provided in the Final Screening Assessment for the Rapid Screening of Substances with Limited General Population Exposure. CAS RNs 67633-57-2 and 68122-86-1 will be assessed in a future screening assessment.

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