3,4,4-trimethylcyclopentane-1,2-dione

3,4,4-三甲基-1,2-环戊二酮

Also known as: 1,2-cyclopentanedione, 3,4,4-trimethyl-, 3,4,4-trimethylcyclopentane-1,2-dione, 3,4,4-Trimethyl-1,2-cyclopentanedione, 3,4,4-Trimethylcyclopentan-1,2-dione, 3,4,4-trimethyl-2-cyclopentanedione, 3,4,4-trimethyl-cyclopentane-1,2-dione, EINECS 251-370-7

3,4,4-trimethylcyclopentane-1,2-dione (CAS 33079-56-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H12O2 and a molecular weight of 140.18000 g/mol. It is also known as 1,2-cyclopentanedione, 3,4,4-trimethyl-, 3,4,4-Trimethyl-1,2-cyclopentanedione and 3,4,4-Trimethylcyclopentan-1,2-dione. Key properties include a boiling point of 191.7ºC at 760mmHg, a density of 1g/cm3 and a flash point of 65.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
33079-56-0
Jingsj CID
J-1133516-0
Molecular Formula
C8H12O2
Chinese Name
3,4,4-三甲基-1,2-环戊二酮
Molecular Weight
140.18000 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point191.7ºC at 760mmHg
Density1g/cm3
Flash Point65.8ºC

Frequently Asked Questions

What is the CAS number of 3,4,4-trimethylcyclopentane-1,2-dione?

The CAS number of 3,4,4-trimethylcyclopentane-1,2-dione is 33079-56-0.

What are the molecular formula and molecular weight of 3,4,4-trimethylcyclopentane-1,2-dione?

3,4,4-trimethylcyclopentane-1,2-dione has molecular formula C8H12O2 and molecular weight 140.18000 g/mol.

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

Last updated:

How to cite: Jingsj. "3,4,4-trimethylcyclopentane-1,2-dione (CAS 33079-56-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1133516-0 (accessed 2026-10-25).

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