Methylsuccinic anhydride

2-甲基琥珀酸酐

Also known as: 2-Methylsuccinic anhydride, 3-Methyldihydrofuran-2,5-dione, 3-Methyloxolane-2,5-dione, Pyrotartaric anhydride, 3-Methylsuccinic anhydride, Dihydro-3-methyl-2,5-furandione, Succinic anhydride, methyl-, MFCD00005527, EINECS 223-870-5

Methylsuccinic anhydride (CAS 4100-80-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H6O3 and a molecular weight of 114.09900 g/mol. It is also known as 2-Methylsuccinic anhydride, 3-Methyldihydrofuran-2,5-dione and 3-Methyloxolane-2,5-dione. Key properties include a melting point of 33-35ºC(lit.), a boiling point of 239ºC at 760mmHg, a density of 1.23g/cm3 and a flash point of 108.2ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
4100-80-5
Jingsj CID
J-47894-2
Molecular Formula
C5H6O3
Chinese Name
2-甲基琥珀酸酐
Molecular Weight
114.09900 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point33-35ºC(lit.)
Boiling Point239ºC at 760mmHg
Density1.23g/cm3
Flash Point108.2ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of Methylsuccinic anhydride?

The CAS number of Methylsuccinic anhydride is 4100-80-5.

What are the molecular formula and molecular weight of Methylsuccinic anhydride?

Methylsuccinic anhydride has molecular formula C5H6O3 and molecular weight 114.09900 g/mol.

Is Methylsuccinic anhydride hazardous?

Methylsuccinic anhydride has GHS signal word Warning.

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

Last updated:

How to cite: Jingsj. "Methylsuccinic anhydride (CAS 4100-80-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47894-2 (accessed 2026-10-22).

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