3-(2-oxo-2-thiophen-2-yl-ethylidene)-3,4-dihydro-1H-quinoxalin-2-one

3-(2-氧代-2-噻吩-2-亚乙基)-3,4-二氢-1H-喹喔啉-2-酮

Also known as: 2(1H)-Quinoxalinone, 3,4-dihydro-3-[2-oxo-2-(2-thienyl)ethylidene]-, 3-(2-Oxo-2-(thiophen-2-yl)ethylidene)-3,4-dihydroquinoxalin-2(1H)-one, 3-[2-oxo-2-(2-thienyl)ethylidene]-3,4-dihydroquinoxalin-2(1H)-one

3-(2-oxo-2-thiophen-2-yl-ethylidene)-3,4-dihydro-1H-quinoxalin-2-one (CAS 425395-94-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C14H10N2O2S and a molecular weight of 270.30600 g/mol. It is also known as 2(1H)-Quinoxalinone, 3,4-dihydro-3-[2-oxo-2-(2-thienyl)ethylidene]-, 3-(2-Oxo-2-(thiophen-2-yl)ethylidene)-3,4-dihydroquinoxalin-2(1H)-one and 3-[2-oxo-2-(2-thienyl)ethylidene]-3,4-dihydroquinoxalin-2(1H)-one. Key properties include a boiling point of 485.8ºC at 760 mmHg, a density of 1.415g/cm3 and a flash point of 247.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
425395-94-4
Jingsj CID
J-1421819-6
Molecular Formula
C14H10N2O2S
Chinese Name
3-(2-氧代-2-噻吩-2-亚乙基)-3,4-二氢-1H-喹喔啉-2-酮
Molecular Weight
270.30600 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point485.8ºC at 760 mmHg
Density1.415g/cm3
Flash Point247.6ºC

Frequently Asked Questions

What is the CAS number of 3-(2-oxo-2-thiophen-2-yl-ethylidene)-3,4-dihydro-1H-quinoxalin-2-one?

The CAS number of 3-(2-oxo-2-thiophen-2-yl-ethylidene)-3,4-dihydro-1H-quinoxalin-2-one is 425395-94-4.

What are the molecular formula and molecular weight of 3-(2-oxo-2-thiophen-2-yl-ethylidene)-3,4-dihydro-1H-quinoxalin-2-one?

3-(2-oxo-2-thiophen-2-yl-ethylidene)-3,4-dihydro-1H-quinoxalin-2-one has molecular formula C14H10N2O2S and molecular weight 270.30600 g/mol.

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

Last updated:

How to cite: Jingsj. "3-(2-oxo-2-thiophen-2-yl-ethylidene)-3,4-dihydro-1H-quinoxalin-2-one (CAS 425395-94-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1421819-6 (accessed 2026-10-25).

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