bicyclo[3.3.0]oct-2-en-7-one

双环[3.3.0]辛-2-烯-7-酮

Also known as: 3,3a,4,6a-tetrahydro-2(1H)-pentalenone, 2(1H)-Pentalenone, 3,3a,4,6a-tetrahydro-, bicyclo[3.3.0]-2-octen-7-one

bicyclo[3.3.0]oct-2-en-7-one (CAS 35200-12-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C8H10O and a molecular weight of 122 g/mol. It is also known as 3,3a,4,6a-tetrahydro-2(1H)-pentalenone, 2(1H)-Pentalenone, 3,3a,4,6a-tetrahydro- and bicyclo[3.3.0]-2-octen-7-one. Key properties include a boiling point of 202.8±19.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 74.9±16.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
35200-12-5
Jingsj CID
J-1528357-1
Molecular Formula
C8H10O
Chinese Name
双环[3.3.0]辛-2-烯-7-酮
Molecular Weight
122 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point202.8±19.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point74.9±16.5 °C

Frequently Asked Questions

What is the CAS number of bicyclo[3.3.0]oct-2-en-7-one?

The CAS number of bicyclo[3.3.0]oct-2-en-7-one is 35200-12-5.

What are the molecular formula and molecular weight of bicyclo[3.3.0]oct-2-en-7-one?

bicyclo[3.3.0]oct-2-en-7-one has molecular formula C8H10O and molecular weight 122 g/mol.

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

Last updated:

How to cite: Jingsj. "bicyclo[3.3.0]oct-2-en-7-one (CAS 35200-12-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1528357-1 (accessed 2026-10-23).

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