3-Methylbut-2-enoic anhydride

3-甲基-2-丁烯酸酐

Also known as: 3,3-Dimethylacrylic anhydride, Bis(3-methyl-2-butenoic)anhydride, Bis(3-methylcrotonic acid)anhydride, 2-Butenoic acid, 3-methyl-, anhydride, 3-Methyl-2-butenoic anhydride, Senecioic anhydride, 3-Methylbut-2-enoyl 3-methylbut-2-enoate

3-Methylbut-2-enoic anhydride (CAS 34876-10-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H14O3 and a molecular weight of 182.216 g/mol. It is also known as 3,3-Dimethylacrylic anhydride, Bis(3-methyl-2-butenoic)anhydride and Bis(3-methylcrotonic acid)anhydride. Key properties include a boiling point of 278.5±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 119.8±15.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
34876-10-3
Jingsj CID
J-1497944-8
Molecular Formula
C10H14O3
Chinese Name
3-甲基-2-丁烯酸酐
Molecular Weight
182.216 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point278.5±9.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point119.8±15.9 °C

Frequently Asked Questions

What is the CAS number of 3-Methylbut-2-enoic anhydride?

The CAS number of 3-Methylbut-2-enoic anhydride is 34876-10-3.

What are the molecular formula and molecular weight of 3-Methylbut-2-enoic anhydride?

3-Methylbut-2-enoic anhydride has molecular formula C10H14O3 and molecular weight 182.216 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Methylbut-2-enoic anhydride (CAS 34876-10-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1497944-8 (accessed 2026-10-24).

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