3-Hydroxycyclopent-2-en-1-one

3-羟基-2-环戊烯-1-酮

Also known as: 2-Cyclopenten-1-one, 3-hydroxy-, 2-Cyclopenten-1-one,3-hydroxy, 3-hydroxy-1-cyclopent-2-enone, 3-hydroxy-2-cyclopenten-1-one, 3-hydroxycyclopent-2-en-1-one, 3-hydroxycyclopent-2-enone, 3-hydroxycyclopentenone, cyclopentenolone

3-Hydroxycyclopent-2-en-1-one (CAS 5870-62-2) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H6O2 and a molecular weight of 98.09990 g/mol. It is also known as 2-Cyclopenten-1-one, 3-hydroxy-, 2-Cyclopenten-1-one,3-hydroxy and 3-hydroxy-1-cyclopent-2-enone. Key properties include a boiling point of 213ºC at 760mmHg, a density of 1.334g/cm3 and a flash point of 84.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
5870-62-2
Jingsj CID
J-1178268-3
Molecular Formula
C5H6O2
Chinese Name
3-羟基-2-环戊烯-1-酮
Molecular Weight
98.09990 g/mol
Category
Ketones
Last updated
8/21/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Boiling Point213ºC at 760mmHg
Density1.334g/cm3
Flash Point84.8ºC

Frequently Asked Questions

What is the CAS number of 3-Hydroxycyclopent-2-en-1-one?

The CAS number of 3-Hydroxycyclopent-2-en-1-one is 5870-62-2.

What are the molecular formula and molecular weight of 3-Hydroxycyclopent-2-en-1-one?

3-Hydroxycyclopent-2-en-1-one has molecular formula C5H6O2 and molecular weight 98.09990 g/mol.

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

Last updated:

How to cite: Jingsj. "3-Hydroxycyclopent-2-en-1-one (CAS 5870-62-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1178268-3 (accessed 2026-10-22).

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