Phosphoric Acid Derivatives Group
Information sheet
These substances were identified for action under the Chemicals Management Plan (CMP). The screening assessment focuses on 3 of 6 substances referred to collectively under the CMP as the Phosphoric Acid Derivatives Group.
Summary of publications
| Substance group | CAS RN | Common name | DSL name | Public comments on the draft screening assessment | Final screening assessment | Conclusion on section 64 criteria | Follow-up activities |
|---|---|---|---|---|---|---|---|
| Phosphoric Acid Derivatives Group | 25155-23-1 | Trixylyl phosphate | Phenol, dimethyl-, phosphate (3:1) | HTML | HTML | Does not meet | Significant New Activity (SNAc) provisions |
| 37310-83-1Footnote a | Oleyl phosphate | 9-Octadecen-1-ol, (Z)-, phosphate | None planned at this time | ||||
| 119345-01-6Footnote aFootnote b | None | Phosphorous trichloride, reaction products with 1,1-biphenyl and 2,4-bis(1,1-dimethylethyl)phenol | |||||
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Timelines
| Date | Activity |
|---|---|
| March 26, 2025 | Publication in Canada Gazette, Part II: Vol. 159, No. 7, of an order amending the Domestic Substances List (DSL) to apply the SNAc provisions of CEPA to trixylyl phosphate. |
| December 19, 2020 | Publication in the Canada Gazette, Part I: Vol. 154, No. 51 of a notice of intent to amend the DSL to apply the SNAc provisions of CEPA to trixylyl phosphate and start of a 60-day public comment period. |
| December 19, 2020 | Publication of the final screening assessment. The related notice was published in the Canada Gazette, Part I: Vol. 154, No. 51. |
| July 13, 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. 28. |
Follow-up activities
Although trixylyl phosphate is not considered to be harmful to human health or to the environment at current levels of exposure, this substance is associated with effects of concern, namely due to its potential to cause effects on the reproductive system. Therefore, there may be a concern if exposures were to increase. For this reason, the Government of Canada has applied the SNAc provisions of CEPA to trixylyl phosphate.
Background
Three other substances were identified as being a part of the Phosphoric Acid Derivatives Group at the outset of the third phase of the CMP. These substances were subsequently determined to be of low concern to both human health and the environment, through other approaches. Conclusions for CAS RNs 68604-99-9, 68952-35-2, and 111174-61-9 are provided in the Final Screening Assessment for the Rapid Screening of Substances with Limited General Population Exposure.