trans-3,4-dimethylcyclopentanone

3,4-二甲基环戊酮

Also known as: 3,4-dimethylcyclopentanone, Cyclopentanone, 3,4-dimethyl-, (3R,4R)-rel-, TRANS-3,4-DIMETHYLCYCLOPENTANONE, rel-(3R,4R)-3,4-dimethylcyclopentanone

trans-3,4-dimethylcyclopentanone (CAS 19550-73-3) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C7H12O and a molecular weight of 112.17000 g/mol. It is also known as 3,4-dimethylcyclopentanone, Cyclopentanone, 3,4-dimethyl-, (3R,4R)-rel- and TRANS-3,4-DIMETHYLCYCLOPENTANONE. Key properties include a boiling point of 154.8ºC at 760mmHg, a density of 0.895g/cm3 and a flash point of 40.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 19550-73-3
Jingsj CID: J-1104039-8
Molecular Formula: C₇H₁₂O
Chinese Name: 3,4-二甲基环戊酮
Molecular Weight: 112.17000 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	154.8ºC at 760mmHg
Density	0.895g/cm3
Flash Point	40.6ºC

Frequently Asked Questions

What is the CAS number of trans-3,4-dimethylcyclopentanone?

The CAS number of trans-3,4-dimethylcyclopentanone is 19550-73-3.

What are the molecular formula and molecular weight of trans-3,4-dimethylcyclopentanone?

trans-3,4-dimethylcyclopentanone has molecular formula C7H12O and molecular weight 112.17000 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "trans-3,4-dimethylcyclopentanone (CAS 19550-73-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1104039-8 (accessed 2026-10-24).

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