Ethyl hydrogen maleate

马来酸氢乙酯

Also known as: (2Z)-4-Ethoxy-4-oxobut-2-enoic acid, (Z)-2-butenedioic acid monoethyl ester, 2-Butendioicacid(Z),monoetherester, 2-Butenedioic acid (Z), monoethyl ester, 2-Butenedioic acid, monoethyl ester, (2Z)-, 4-ethoxy-4-oxo-2-butenoic acid, EINECS 223-635-7, ETHYL HYDROGEN MALEATE, Ethyl Hydrogen Maleate, Irsogladine Impurity 4, MALEIC ACID MONOETHYL ESTER, MONOETHYL MALEATE, Maleic Acid Monoethyl Ester, Monoethyl Maleate, Monoethyl maleate, lrt-351, maleicacid,ethylester

Ethyl hydrogen maleate (CAS 3990-03-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H8O4 and a molecular weight of 144.125 g/mol. It is also known as (2Z)-4-Ethoxy-4-oxobut-2-enoic acid, (Z)-2-butenedioic acid monoethyl ester and 2-Butendioicacid(Z),monoetherester. Key properties include a boiling point of 261.6±23.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 109.6±16.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

3990-03-2

Jingsj CID

J-7658-6

Molecular Formula

C₆H₈O₄

Chinese Name

马来酸氢乙酯

Molecular Weight

144.125 g/mol

Category

Organic Acids

Last updated

8/21/2026