Monomethyl maleate, 97%

About Monomethyl maleate, 97%

Monomethyl maleate is a carboxylic acid carrying the CAS registry number 3052-50-4 at a purity of 97%. Its molecular formula is C5H6O4 and its molecular weight is 130.1 g/mol. The IUPAC name is (Z)-4-methoxy-4-oxobut-2-enoic acid. Alternative names: Maleic acid monomethyl ester and Methyl hydrogen maleate.

The material typically appears as a colourless to light yellow to light orange liquid. Keep containers tightly closed in a cool, well-ventilated area away from heat and ignition sources. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Key uses span polymer and resin production and organic synthesis. It is used across pharmaceutical manufacturing, academic and industrial research and polymers and plastics.

Available in 5 g, 25 g, 100 g and 500 g packs, Monomethyl maleate is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Polymer & resin production
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Monomethyl maleate, 97%
Catalogue No.	VQ-008541
CAS Number	3052-50-4
IUPAC name	(Z)-4-methoxy-4-oxobut-2-enoic acid
Molecular formula	C₅H₆O₄
Molecular weight	130.1 g/mol
Exact mass	130.0266
Purity / assay	97%
HSN code	29221990
InChIKey	NKHAVTQWNUWKEO-IHWYPQMZSA-N
SMILES	COC(=O)/C=C\C(=O)O
PubChem CID	5354456

Physical properties
Physical form	Liquid
Appearance	Colourless to light yellow to light orange liquid
LogP (XLogP3)	0.4
H-bond donors / acceptors	1 / 4
TPSA	63.6 Å²
Synonyms	Maleic acid monomethyl ester, Methyl hydrogen maleate, Hydrogen methyl maleate, Maleic acid, monomethyl ester, 2-Butenedioic acid, monomethyl ester, Monomethyl (Z)-2-butenedioate, 2-Butenedioic acid (Z)-, monomethyl ester, 2-Butenedioic acid (2Z)-, 1-methyl ester, 2-Butenedioic acid (2Z)-, monomethyl ester, 2-Butenedioic acid (Z)-, monomethyl ester (9CI), (2Z)-4-methoxy-4-oxobut-2-enoic acid, Fumaric acid, methyl ester

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation

Precautionary statements: P264, P264 + P265, P280, P302 + P352, P305 + P351 + P338, P321, P332 + P317, P337 + P317, P362 + P364

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Monomethyl maleate, 97%?

The CAS Registry Number of Monomethyl maleate, 97% is 3052-50-4. It is also known as Maleic acid monomethyl ester, Methyl hydrogen maleate, Hydrogen methyl maleate.

What is the molecular formula and molecular weight of Monomethyl maleate, 97%?

Monomethyl maleate, 97% has the molecular formula C5H6O4 and a molecular weight of 130.1 g/mol. Its IUPAC name is (Z)-4-methoxy-4-oxobut-2-enoic acid.

Which grade and pack sizes of Monomethyl maleate, 97% can I order?

We supply Monomethyl maleate, 97% in (97%) grade, in 5 g, 25 g, 100 g, 500 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Monomethyl maleate, 97%?

Yes. Every lot of Monomethyl maleate, 97% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Monomethyl maleate, 97% be shipped internationally?

Yes. Monomethyl maleate, 97% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.