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CAS 23267-57-4

CAS 23267-57-4 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 23267-57-4
CAS 23267-57-4PubChem CID 5352481

beta-Ionone epoxide

Beta-ionone 5,6-epoxide is an apo carotenoid monoterpenoid that is beta-ionone substituted by an epoxy group across positions 5 and 6. It has a role as a metabolite. It is an epoxide and an apo carotenoid monoterpenoid. It is functionally related to a beta-ionone. — ChEBI

IUPAC name
(E)-4-(2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl)but-3-en-2-one
Molecular formula
C13H20O2
Molecular weight
208.30 g/mol
Exact mass
208.146329876 Da
XLogP3
2.0
Topological polar surface area
29.6 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

(E)-4-(2,2,6-trimethyl-7-oxabicyclo(4.1.0)heptan-1-yl)but-3-en-2-oneRefChem:1079692Ionone Impurity 14-(2,2,6-trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl)but-3-en-2-one.beta.-Ionon-5,6-epoxide(5R,6S)-5,6-Epoxy-7-megastigmen-9-one3-Buten-2-one,4-(2,2,6-trimethyl-7-oxabicyclo[4 1 0]hept-1-yl)-beta-ionone 5,6-epoxide
16 more reported names
beta-Ionon-5,6-epoxide4-(2,2,6-Trimethyl-7-oxabicyclo[4.1.0]hept-1-yl)-3-buten-2-oneEpoxy-.beta.-ionone.beta.-Ionone epoxide5,6-Epoxy-.beta.-ionone.beta.-Ionone-5,6-epoxide.beta.-Ionone-5,6-epoxyde5,6-.beta.-Ionone epoxideCHEBI:875463-Buten-2-one, 4-(2,2,6-trimethyl-7-oxabicyclo[4.1.0]hept-1-yl)-, (3E)-CHEBI:2089375,6-epoxy-5,6-dihydro-beta-ionone(3E)-4-{2,2,6-TRIMETHYL-7-OXABICYCLO[4.1.0]HEPTAN-1-YL}BUT-3-EN-2-ONE7-Oxabicyclo[4.1.0]heptane, 3-buten-2-one deriv.(3E)-4-(2,2,6-trimethyl-7-oxabicyclo[4.1.0]hept-1-yl)but-3-en-2-one(3E)-4-(2,2,6-Trimethyl-7-oxabicyclo[4.1.0]heptan-1-yl)-3-buten-2-one
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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 23267-57-4

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How CAS 23267-57-4 is used on this site

CAS 23267-57-4 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 23267-57-4 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.