These substances were identified for action under the Chemicals Management Plan (CMP). The screening assessment focuses on 10 substances referred to collectively under the CMP as the Ketones Group.
|Substance group||CAS RN||Common name||DSL name||Draft screening assessment||Risk management scope||Proposed conclusion on section 64 criteria||Follow-up activities|
|Ketones Group||78-93-3||Methyl ethyl ketone (MEK)||2-Butanone||HTML||HTML||Meets one or more of the criteria||Refer to risk management scope|
|107-87-9||Methyl propyl ketone (MPK)||2-Pentanone||None||Does not meet||None planned at this time|
|108-10-1||Methyl isobutyl ketone (MIBK)||4-Methyl-2-pentanone||HTML||Meets one or more of the criteria||Refer to risk management scope|
|110-12-3||Methyl isoamyl ketone (MIAK)||2-Hexanone, 5-methyl||None||Does not meet||None planned at this time|
|123-42-2||Diacetone alcohol (DAA)||4-Hydroxy-4-methyl-2-pentanone|
|123-54-6Table 1 footnote a||2,4-Pentanedione (2,4-PD)||2,4-Pentanedione||HTML||Meets one or more of the criteria||Refer to risk management scope|
|141-79-7||Mesityl oxide (MO)||4-Methyl-3-penten-2-one||None||Does not meet||None planned at this time|
|600-14-6Table 1 footnote a||2,3-Pentanedione (2,3-PD)||2,3-Pentanedione|
|June 2023||Anticipated publication of the Final Screening Assessment for the Ketones Group and the Proposed Risk Management Approach for Methyl Ethyl Ketone, Methyl Isobutyl Ketone, and 2,4-Pentanedione.|
|June 24, 2023||Publication in Canada Gazette, Part I, of a notice under section 71 of CEPA 1999.|
|January 19, 2019||Publication and start of 60-day public comment period on the Draft Screening Assessment for the Ketones Group and the Risk Management Scope for Methyl Ethyl Ketone, Methyl Isobutyl Ketone, and 2,4-Pentanedione. The related notice was published in the Canada Gazette, Part I: Vol. 153, No. 3.|
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 MEK (CAS RN 78-93-3) and MIBK (CAS RN 108-10-1). More information is available on the Information gathering with respect to certain substances under the Chemicals Management Plan web page.
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