Decenes Group
Information sheet
These substances were identified for action under the Chemicals Management Plan (CMP). The assessment focused on 2 substances referred to collectively under the CMP as the Decenes Group.
| Substance group | CAS RN | Common name (acronym) | DSL name | Public comments on the draft screening assessment | Final assessment | Proposed risk management approach | Conclusion on section 64 criteria | Follow-up activities |
|---|---|---|---|---|---|---|---|---|
| Decenes Group | 68649-11-6Table 1 Footnote a | Hydrogenated didecene | 1-Decene, dimer, hydrogenated | HTML | HTML | HTML | Meets one or more of the criteria | Refer to proposed risk management approach |
| 68649-12-7Table 1 Footnote a | Hydrogenated trimer and tetramer of decene (HTTD) | 1-Decene, tetramer, mixed with 1-decene trimer, hydrogenated | ||||||
|
||||||||
| Date | Activity |
|---|---|
| November 22, 2025 | Publication of the final assessment. The proposed risk management approach was also published for a 60-day public comment period. The related notice was published in the Canada Gazette, Part I: Vol. 161, No 47. |
| June 24, 2023 | Publication in Canada Gazette, Part I, of a notice under section 71 of the Canadian Environmental Protection Act, 1999 (CEPA). |
| January 9, 2021 | Publication and start of 60-day public comment period on the draft screening assessment and risk management scope. The related notice was published in the Canada Gazette, Part I: Vol. 155, No. 2. |
Information gathering
Section 71 CMP 2023
In June 2023, a notice was published in the Canada Gazette, Part I: Vol. 157, No. 25 – June 24, 2023 under section 71 of CEPA 1999. This notice applies to hydrogenated didecene (CAS RN 68649-11-6) and HTTD (CAS RN 68649-12-7). More information is available on the Information gathering with respect to certain substances under the Chemicals Management Plan web page.