Alkyl Imidazolines Group

Information sheet

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

Summary of publications
Substance Group CAS RN Common name DSL name Draft screening assessment Proposed conclusion on section 64 criteria Follow-up activities
Alkyl Imidazolines Group 95-38-5 N-b-hydroxyethyl oleyl imidazoline 1H-Imidazole-1-ethanol, 2-(8-heptadecenyl)-4,5-dihydro- HTML
Does not meet None planned at this time
27136-73-8 Oleyl hydroxyethyl imidazoline 1H-Imidazole-1-ethanol, 2-(heptadecenyl)-4,5-dihydro-
68442-97-7Footnote 1,Footnote 2 Tall oil, diethylenetriamine imidazoline 1H-Imidazole-1-ethanamine, 4,5-dihydro-, 2-nortall-oil alkyl derivs.
68966-38-1 Isostearyl imidazoline 1H-Imidazole-1-ethanol, 4,5-dihydro-2-isoheptadecyl-
Date Activity
June 2020 Anticipated publication of the final screening assessment.
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.
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


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 conclusions for CAS RN 21652-27-7 are provided in the 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 conclusions for CAS RN 31135-57-6 are provided in the Screening Assessment for the Rapid Screening of Substances with Limited General Population Exposure. Proposed conclusions for CAS RNs 67633-57-2 and 68122-86-1 will be provided in a future screening assessment.

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