Methyl n-Butyl Ketone
CAS Number
591-78-6Synonym
MBK; MNBK; 2-Hexanone; Butyl methyl ketone; Methyl butyl ketone; 2-Ketohexane; 2-Oxohexane; Propylacetone
Occurrence/Use
Solvent for lacquers, ink thinners, nitrocellulose, resins, oils, fats, and waxes; medium evaporating solvent
Proposition 65
Chemical Status
| Reproductive Toxicity : | Currently listed |
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Upcoming Actions
| Upcoming Actions: |
On Monday, November 9, 2015, the DARTIC will consider whether methyl-n-butyl ketone should remain listed under Proposition 65 as known to cause reproductive toxicity. |
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Reproductive Toxicity
| Listed as causing: | Developmental Toxicity Male Reproductive Toxicity | Developmental Toxicity |
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| Date of Listing: | |
| Basis for Listing : | State's Qualified Experts | Male Reproductive Toxicity |
| Date of Listing: | |
| Basis for Listing : | State's Qualified Experts |
Documents, Presentations, and Publications
| Reproductive Toxicity: |
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Comments
Public notices related to this chemical
- Chemical Listed Effective December 4, 2015 as Known to the State of California to Cause Reproductive Toxicity: 2,5-Hexanedione and Addition of a Reproductive Toxicity Endpoint (Developmental) for Methyl-N-Butyl Ketone
- Reconsideration of Listing of Methyl-n-butyl Ketone and Consideration of Listing of 2,5-Hexanedione
- Availability of Final Data Summaries and Priorities for Chemicals With Respect to Their Potential to Cause Birth Defects or Other Reproductive Harm
- Availability of the Draft Data Summaries and Draft Priorities for Chemicals with Respect to Their Potential to Cause Birth Defects or Other Reproductive Harm
Basis for listing Methyl-n-butyl ketone as known to the State to cause male reproductive toxicity changed from Labor Code to State's Qualified Experts effective November 9, 2015.
Developmental toxicity endpoint added to listing for Methyl-n-butyl ketone effective December 4, 2015.