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CAS 547-65-9

CAS 547-65-9 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 547-65-9
CAS 547-65-9PubChem CID 68352

alpha-Methylene butyrolactone

Alpha-methylene gamma-butyrolactone is a butan-4-olide having a methylene group at the 3-position. It has a role as an anti-ulcer drug and a gastrointestinal drug. — ChEBI

IUPAC name
3-methylideneoxolan-2-one
Molecular formula
C5H6O2
Molecular weight
98.10 g/mol
Exact mass
98.036779430 Da
XLogP3
0.8
Topological polar surface area
26.3 Ų
Hydrogen-bond donors
0
Hydrogen-bond acceptors
2
Covalent units
1
Defined stereocentres
0

Also known as

alpha-Methylene-gamma-butyrolactoneTulipalin A3-Methylenedihydro-2(3H)-furanone3-methylenedihydrofuran-2(3H)-one2(3H)-Furanone, dihydro-3-methylene-Dihydro-3-methylene-2(3H)-furanoneSecurolidealpha-methylene gamma-butyrolactone
16 more reported names
.alpha.-Methylene butyrolactoneEINECS 208-931-6NSC 205367.alpha.-Methylene-.gamma.-butyrolactoneAI3-63021CHEBI:1041202-Methylenebutanolactone362Y256BOLTULIPALIN 98NSC-205367alpha-methylidene-gamma-butyrolactoneMETHYLENE BUTYROLACTONE, ALPHA-.ALPHA.-METHYLENE BUTYROLACTONE [MI]RefChem:555876TULIPALIN A [INCI]208-931-6
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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 547-65-9

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How CAS 547-65-9 is used on this site

CAS 547-65-9 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 547-65-9 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.