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CAS 925-21-3

CAS 925-21-3 matches 0 EU annex records across Annex II–VI of Regulation 1223/2009.

Chemical identity and properties

PubChem 2D chemical structure for CAS 925-21-3
CAS 925-21-3PubChem CID 5356726

Monobutyl maleate

Butyl maleate is a maleate ester. ChEBI

IUPAC name
(Z)-4-butoxy-4-oxobut-2-enoic acid
Molecular formula
C8H12O4
Molecular weight
172.18 g/mol
Exact mass
172.07355886 Da
XLogP3
1.1
Topological polar surface area
63.6 Ų
Hydrogen-bond donors
1
Hydrogen-bond acceptors
4
Covalent units
1
Defined stereocentres
0

Also known as

Butyl hydrogen maleate2-Butenedioic acid (Z)-, monobutyl ester2-Butenedioic acid (2Z)-, monobutyl estern-butyl maleateF2LD7FVO1L2-Butenedioic acid (2Z)-, 1-butyl esterRefChem:7810213-116-3
14 more reported names
Maleic acid, monobutyl estermono-Butyl maleateUNII-F2LD7FVO1LMALEIC ACID 1-BUTYL ESTEREINECS 213-116-3Hydrogen butyl maleate(2Z)-4-butoxy-4-oxobut-2-enoic acid(Z)-4-butoxy-4-oxo-but-2-enoic acidmono-Butyl maleate, 90%EC 213-116-3maleic acid-mono-n-butyl esterCHEBI:145719(2Z)-4-Butoxy-4-oxo-2-butenoic acid(2Z)-4-Butoxy-4-oxo-2-butenoic acid #
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 925-21-3

0 total
No records found for this CAS number.

How CAS 925-21-3 is used on this site

CAS 925-21-3 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 925-21-3 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.