2-Butenedioic acid methyl ester

4-methoxy-4-oxobut-2-enoic acid

CAS: 2756-87-8

Molecular Formula	`C5H6O4`
Molecular Weight	130.02661 g/mol
LogP	-0.2
Topological Polar Surface Area	63.6 Å²
Hydrogen Bond Donors	1
Hydrogen Bond Acceptors	3
Rotatable Bonds	2
Exact Mass	130.02661
Heavy Atoms	9
Complexity	147.0

Chemical Identifiers

CAS Number	2756-87-8
SMILES	`COC(=O)C=CC(=O)O`

Product Overview

2-Butenedioic acid methyl ester (CAS 2756-87-8), with molecular formula C5H6O4 and molecular weight 130.02661 g/mol. IUPAC: 4-methoxy-4-oxobut-2-enoic acid.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.

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