Methylcyclopentenolone

Independent reference data for Methylcyclopentenolone (CAS 765-70-8), compiled from public chemistry databases.

Registry identifiers across databases

Computed descriptors

Physicochemical values on record

Documented uses on record

A peroxynitrite scavenger isolated from coffee extract. [ChemIDplus] Used as a flavoring agent; [FDA]Information on 1 consumer products that contain 3-Methyl-1,2-cyclopentanedione in the following categories is provided:

Synonyms and trade names

765-70-8; 3-Methyl-1,2-cyclopentanedione; 1,2-CYCLOPENTANEDIONE, 3-METHYL-; DTXSID3047716; DTXCID2027709; RefChem:503360; Methylcyclopentenolone (diketo; 2-hydroxy-3-methylcyclopent-2-en-1-one; 3-methylcyclopentane-1,2-dione; 212-154-8; 3-Methylcyclopentane-1,2-dione; MFCD00001417; Methylcyclopentenolone (diketo form); EINECS 212-154-8; methyl-cyclopentenolone; 3-Methyl-1.2-cyclopentanedione; FEMA 2700

Regulatory listings held on file

GHS notification summary	99% (206 / 208)

GHS hazard classification

GHS notification summary	99% (206 / 208)

This chemical does not meet GHS hazard criteria for 99% (206 of 208) of all reports.

Reported as not meeting GHS hazard criteria by 206 of 208 companies (only 1% companies provided GHS information). For more detailed information, please visit ECHA C&L website.

What the public record says

3-Methyl-1,2-cyclopentanedione · CAS 765-70-8 · C6H8O2. Melting Point: 106.5 - 107 °C.

Physical description and handling notes

Source: PubChem / Wikidata; the batch COA governs where values differ.