2H-Pyran-2,4,6(3H,5H)-trione

2H-吡喃-2,4,6(3H,5H)-三酮

Also known as: 1,3-Acetonedicarboxylic acid anhydride, 1,3-Acetonedicarboxylic acid anhydride 98%, Acetonedicarboxylic acid anhydride, β-Ketoglutaric anhydride, 3-Oxoglutaric anhydride, 3-Oxo-pentanedioic acid anhydride, Oxane-2,4,6-trione, Pyran-2,4,6-trione

2H-Pyran-2,4,6(3H,5H)-trione (CAS 10521-08-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H4O4 and a molecular weight of 128.08300 g/mol. It is also known as 1,3-Acetonedicarboxylic acid anhydride, 1,3-Acetonedicarboxylic acid anhydride 98% and Acetonedicarboxylic acid anhydride. Key properties include a boiling point of 354.9ºC at 760mmHg, a density of 1.472g/cm3 and a flash point of 165.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
10521-08-1
Jingsj CID
J-1343887-4
Molecular Formula
C5H4O4
Chinese Name
2H-吡喃-2,4,6(3H,5H)-三酮
Molecular Weight
128.08300 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point354.9ºC at 760mmHg
Density1.472g/cm3
Flash Point165.4ºC

Frequently Asked Questions

What is the CAS number of 2H-Pyran-2,4,6(3H,5H)-trione?

The CAS number of 2H-Pyran-2,4,6(3H,5H)-trione is 10521-08-1.

What are the molecular formula and molecular weight of 2H-Pyran-2,4,6(3H,5H)-trione?

2H-Pyran-2,4,6(3H,5H)-trione has molecular formula C5H4O4 and molecular weight 128.08300 g/mol.

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

Last updated:

How to cite: Jingsj. "2H-Pyran-2,4,6(3H,5H)-trione (CAS 10521-08-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1343887-4 (accessed 2026-10-22).

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