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CAS 80-71-7

CAS 80-71-7 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

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Chemical identity and properties

PubChem 2D chemical structure for CAS 80-71-7
CAS 80-71-7PubChem CID 6660

2-Hydroxy-3-methyl-2-cyclopenten-1-one

Cyclotene is a metabolite found in or produced by Saccharomyces cerevisiae. — Yeast Metabolome Database (YMDB)

IUPAC name
2-hydroxy-3-methylcyclopent-2-en-1-one
Molecular formula
C6H8O2
Molecular weight
112.13 g/mol
Exact mass
112.052429494 Da
XLogP3
0.3
Topological polar surface area
37.3 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

CycloteneCoryloneCycloten2-Cyclopenten-1-one, 2-hydroxy-3-methyl-MethylcyclopentenoloneCyclotene (ordorant)2-Hydroxy-1-methylcyclopenten-3-oneNSC-133445
16 more reported names
627E92X64BFEMA No. 2700RefChem:581283201-303-22-Hydroxy-3-methylcyclopent-2-enoneCorylonMaple lactone2-Hydroxy-3-methyl-2-cyclopentenone3-Methyl-2-hydroxy-2-cyclopentenone3-Methylcyclopent-2-en-2-ol-1-one3-Methyl-2-cyclopentene-2-ol-1-oneEPA Pesticide Chemical Code 004049NSC 1334452-hydroxy-3-methyl-cyclopent-2-en-1-one3-methyl-2-cyclopenten-2-ol-1-oneCCRIS 2940
Open full PubChem recordPubChem annotations3D structure image
External database identifiers

Retrieved from NIH PubChem on 2026-08-31 by checksum-valid CAS matching. Chemical properties do not replace the regulatory decision on this page.

Records for CAS 80-71-7

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How CAS 80-71-7 is used on this site

CAS 80-71-7 is the Chemical Abstracts Service identifier used to pin this page to a specific substance. In the current dataset, 0 EU annex records share this identifier, which helps you cross-check whether the same substance appears under one regulatory context or several.

Use this page when a supplier specification, SDS or raw-material dossier gives you CAS 80-71-7 and you need to see every linked Annex II–VI record in one place. The entry cards above are the quickest route to concentration limits, warnings, annex placement and product-type conditions.