Dihydroxyfumaric acid

二羟基富马酸

Also known as: (2E)-2,3-dihydroxybut-2-enedioic acid, 2,3-dihydroxyfumaric acid, 2,3-dihydroxy-(E)-2-butenedioic acid, Dihydroxyfumarate, MFCD00149286, EINECS 205-106-2

Dihydroxyfumaric acid (CAS 133-38-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C4H4O6 and a molecular weight of 148.07100 g/mol. It is also known as (2E)-2,3-dihydroxybut-2-enedioic acid, 2,3-dihydroxyfumaric acid and 2,3-dihydroxy-(E)-2-butenedioic acid. Key properties include a melting point of 156ºC (dec.)(lit.), a boiling point of 308.6ºC at 760mmHg, a density of 2.055g/cm3 and a flash point of 154.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
133-38-0
Jingsj CID
J-6077-0
Molecular Formula
C4H4O6
Chinese Name
二羟基富马酸
Molecular Weight
148.07100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point156ºC (dec.)(lit.)
Boiling Point308.6ºC at 760mmHg
Density2.055g/cm3
Flash Point154.7ºC

Frequently Asked Questions

What is the CAS number of Dihydroxyfumaric acid?

The CAS number of Dihydroxyfumaric acid is 133-38-0.

What are the molecular formula and molecular weight of Dihydroxyfumaric acid?

Dihydroxyfumaric acid has molecular formula C4H4O6 and molecular weight 148.07100 g/mol.

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

Last updated:

How to cite: Jingsj. "Dihydroxyfumaric acid (CAS 133-38-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6077-0 (accessed 2026-10-22).

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