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1,2-Cyclopentanedicarboxylic anhydride

1,2-环戊烷二甲酸酐

Also known as: Tetrahydro-1H-cyclopenta[c]furan-1,3(3aH)-dione, cis-1,2-Cyclopentanedicarboxylic anhydride, NSC 159314, (3aS,6aR)-tetrahydro-1H-cyclopenta[c]furan-1,3(3aH)-dione, 1H-Cyclopenta[c]furan-1,3(3aH)-dione, tetrahydro-

1,2-Cyclopentanedicarboxylic anhydride (CAS 5763-49-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C7H8O3 and a molecular weight of 140.137 g/mol. It is also known as Tetrahydro-1H-cyclopenta[c]furan-1,3(3aH)-dione, cis-1,2-Cyclopentanedicarboxylic anhydride and NSC 159314. Key properties include a melting point of 65-75℃, a boiling point of 289.2±9.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 140.4±15.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5763-49-5
Jingsj CID
J-1409662-8
Molecular Formula
C7H8O3
Chinese Name
1,2-环戊烷二甲酸酐
Molecular Weight
140.137 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point65-75℃
Boiling Point289.2±9.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point140.4±15.9 °C

Frequently Asked Questions

What is the CAS number of 1,2-Cyclopentanedicarboxylic anhydride?

The CAS number of 1,2-Cyclopentanedicarboxylic anhydride is 5763-49-5.

What are the molecular formula and molecular weight of 1,2-Cyclopentanedicarboxylic anhydride?

1,2-Cyclopentanedicarboxylic anhydride has molecular formula C7H8O3 and molecular weight 140.137 g/mol.

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

Last updated:

How to cite: Jingsj. "1,2-Cyclopentanedicarboxylic anhydride (CAS 5763-49-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1409662-8 (accessed 2026-10-25).

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