Ammonium hydrogen maleate

顺丁烯二酸氢铵

Also known as: Ammonium hydrogen maleate, Maleic acid monoammonium salt, Maleic acid 1-ammonium salt, Monoammonium maleate, (Z)-2-Butenedioic acid hydrogen 1-ammonium salt, 2-Butenedioic acid (2Z)-, ammonium salt (1:1), Ammonium maleate

Ammonium hydrogen maleate (CAS 44742-89-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H7NO4 and a molecular weight of 133.10300 g/mol. It is also known as Maleic acid monoammonium salt, Maleic acid 1-ammonium salt and Monoammonium maleate. Key properties include a melting point of 138-139ºC, a boiling point of 400.7ºC at 760 mmHg, a density of 1.499g/cm3 and a flash point of 196.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
44742-89-4
Jingsj CID
J-1358669-8
Molecular Formula
C4H7NO4
Chinese Name
顺丁烯二酸氢铵
Molecular Weight
133.10300 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point138-139ºC
Boiling Point400.7ºC at 760 mmHg
Density1.499g/cm3
Flash Point196.1ºC

Frequently Asked Questions

What is the CAS number of Ammonium hydrogen maleate?

The CAS number of Ammonium hydrogen maleate is 44742-89-4.

What are the molecular formula and molecular weight of Ammonium hydrogen maleate?

Ammonium hydrogen maleate has molecular formula C4H7NO4 and molecular weight 133.10300 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "Ammonium hydrogen maleate (CAS 44742-89-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1358669-8 (accessed 2026-10-24).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.