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3-Oxocyclobutanecarbonitrile

Also known as: 3-Oxo-cyclobutancarbonitril, 3-Oxo-cyclobutanecarbonitrile, 3-Oxo-cyclobutannitril, 3-cyanocyclobutanone, 3-oxo-cyclobutane-1-carbonitrile, 3-oxocyclobutane-1-carbonitrile, Cyclobutanecarbonitrile, 3-oxo-

3-Oxocyclobutanecarbonitrile (CAS 20249-16-5) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H5NO and a molecular weight of 95.099 g/mol. Key properties include a boiling point of 249.1±33.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 104.5±25.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20249-16-5
Jingsj CID
J-1112123-6
Molecular Formula
C5H5NO
Molecular Weight
95.099 g/mol
Category
Nitrogen Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point249.1±33.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point104.5±25.4 °C
Exact Mass95.037117
PSA40.86000
LogP-1.19
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.464

Customs & Trade Information

HS Code2926909090
SummaryHS:2926909090 other nitrile-function compounds VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3-Oxocyclobutanecarbonitrile?

The CAS number of 3-Oxocyclobutanecarbonitrile is 20249-16-5.

What are the molecular formula and molecular weight of 3-Oxocyclobutanecarbonitrile?

3-Oxocyclobutanecarbonitrile has molecular formula C5H5NO and molecular weight 95.099 g/mol.

What are the upstream and downstream products of 3-Oxocyclobutanecarbonitrile?

For 3-Oxocyclobutanecarbonitrile, Upstream Products: 3-Methylenecyclobutanecarbonitrile, 5-nitropentan-2-one; Downstream Products: 3-hydroxycyclobutanecarbonitrile, 3,3-Difluorocyclobutanecarbonitrile, (3,3-Difluorocyclobutyl)methanol.

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

Last updated:

How to cite: Jingsj. "3-Oxocyclobutanecarbonitrile (CAS 20249-16-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1112123-6 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.