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CAS 502-44-3

CAS 502-44-3 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 502-44-3
CAS 502-44-3PubChem CID 10401

epsilon-CAPROLACTONE

Hexano-6-lactone is a -lactone that is oxepane substituted by an oxo group at position 2. — ChEBI

IUPAC name
oxepan-2-one
Molecular formula
C6H10O2
Molecular weight
114.14 g/mol
Exact mass
114.068079557 Da
XLogP3
0.0
Topological polar surface area
26.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

CAPROLACTONE6-Hexanolactone2-Oxepanonehexano-6-lactone6-Hexanolide1,6-Hexanolide1-Oxa-2-oxocycloheptanePlaccel M
16 more reported names
6-Hydroxyhexanoic acid lactoneHexanoic acid, epsilon-lactoneHexamethylene oxide, 2-oxo-epsilon-Kaprolaktonepsilon caprolactoneCHEBI:17915TONE ECEQHexanoic acid, 6-hydroxy-, epsilon-lactone56RE988L1RRefChem:6961207-938-1Hexan-6-olideE-Caprolactoneepsilon-Caprolactone monomer2-Oxacycloheptanone.epsilon.-Caprolactone
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 502-44-3

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No records found for this CAS number.

How CAS 502-44-3 is used on this site

CAS 502-44-3 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 502-44-3 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.