Triarylmethanes Group
These substances were identified for action under the Chemicals Management Plan (CMP). This screening assessment focuses on 6 of 7 substances referred to collectively as the Triarylmethanes Group.
Information sheet
Summary of publications
| Substance group | CAS RN | Common name | DSL name | Proposed order and RIAS | Public comments on the draft screening assessment | Final screening assessment | Proposed risk management approach | Conclusion on section 64 criteria | Follow-up activities |
|---|---|---|---|---|---|---|---|---|---|
| Triarylmethanes | 548-62-9Footnote a | Basic Violet 3 | Methanaminium, N-[4-[bis[4-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-, chloride | HTML | HTML | HTML | HTML | Meets one or more of the criteria | Refer to proposed risk management approach |
| 569-64-2 | Malachite Green | Methanaminium, N-[4-[[4-(dimethylamino)phenyl]phenylmethylene]-2,5-cyclohexadien-1-ylidene]-N-methyl-, chloride | |||||||
| 1324-76-1Footnote a | Pigment Blue 61 | Benzenesulfonic acid, [[4-[[4-(phenylamino)phenyl][4-(phenylimino)-2,5-cyclohexadien-1-ylidene]methyl]phenyl]amino]- | None | None | Does not meet | None planned at this time | |||
| 2390-59-2 | Basic Violet 4 | Ethanaminium, N-[4-[bis[4-(diethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, chloride | HTML | HTML | Meets one or more of the criteria | Refer to proposed risk management approach | |||
| 2390-60-5 | Basic Blue 7 | Ethanaminium, N-[4-[[4-(diethylamino)phenyl][4-(ethylamino)-1-naphthalenyl]methylene]-2,5-cyclohexadien-1-ylidene]-N-ethyl-, chloride | |||||||
| 3844-45-9Footnote a | Brilliant Blue FCF | Benzenemethanaminium, N-ethyl-N-[4-[[4-[ethyl[(3-sulfophenyl)methyl]amino]phenyl](2-sulfophenyl)methylene]-2,5-cyclohexadien-1-ylidene]-3-sulfo-, hydroxide, inner salt, disodium salt | None | None | Does not meet | None planned at this time | |||
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Timelines
| Date | Activity |
|---|---|
| April 2, 2022 | Publication in the Canada Gazette, Part I: Vol. 156, No. 14 and start of 60-day public comment period on a proposed order adding Basic Violet 3, Malachite Green, Basic Violet 4, and Basic Blue 7 to Schedule 1 of CEPA 1999.
|
| October 17, 2020 | Publication of the Final Screening Assessment for the Triarylmethanes Group. The Risk Management Approach for Certain Triarylmethanes, specifically CAS RNs 548-62-9, 569-64-2, 2390-59-2 and 2390-60-5 was also published for a 60-day public comment period. The related notice was published in the Canada Gazette, Part I: Vol. 154, No. 42. |
| December 8, 2018 | Publication and start of 60-day public comment period on the Draft Screening Assessment for the Triarylmethanes Group (including follow-up activities for CAS RNs 548-62-9, 2390-59-2, and 2390-60-5) and the Risk Management Scope for Certain Triarylmethanes, specifically: Basic Violet 3 (CAS RN 548-62-9), Malachite Green (CAS RN 569-64-2), Basic Violet 4 (CAS RN 2390-59-2), Basic Blue 7 (CAS RN 2390-60-5). The related notice was published in the Canada Gazette, Part I: Vol. 152, No. 49. |
Background
A seventh substance, (CAS RN 632-99-5) was initially identified as being part of the Triarylmethanes Group at the outset of the third phase of the CMP. This substance was subsequently determined to be of low concern to both human health and the environment, through other approaches. The conclusion for this substance is provided in the Final Screening Assessment for the Rapid Screening of Substances with Limited General Population Exposure.
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