Ethyl 4-oxo-2-(phenylamino)-4,5-dihydrothiophene-3-carboxylate

4-氧代-2-(苯基氨基)-4,5-二氢噻吩-3-羧酸乙酯

Also known as: Ethyl 2-anilino-4-oxo-4,5-dihydro-3-thiophenecarboxylate, Ethyl 2-anilino-4-oxo-4,5-dihydrothiophene-3-carboxylate, Ethyl 2-phenylamino-4-oxo-4,5-dihydrothiophene-3-carboxylate, Ethyl 4-oxo-2-(phenylamino)-5-hydrothiophene-3-carboxylate, Ethyl 4-oxo-2-(phenylamino)thiophene-3-carboxylate, ethyl 2-anilino-4-oxo-4,5-dihydrothiophen-3-carboxylate, ethyl 2-anilino-4-oxo-thiophene-3-carboxylate, ethyl 2-anilino-4-oxothiophene-3-carboxylate, 3-thiophenecarboxylic acid, 4,5-dihydro-4-oxo-2-(phenylamino)-, ethyl ester, NSC 623029

Ethyl 4-oxo-2-(phenylamino)-4,5-dihydrothiophene-3-carboxylate (CAS 78267-15-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C13H13NO3S and a molecular weight of 263.31200 g/mol. It is also known as Ethyl 2-anilino-4-oxo-4,5-dihydro-3-thiophenecarboxylate, Ethyl 2-anilino-4-oxo-4,5-dihydrothiophene-3-carboxylate and Ethyl 2-phenylamino-4-oxo-4,5-dihydrothiophene-3-carboxylate. Key properties include a melting point of 147-149ºC, a boiling point of 402.2ºC at 760 mmHg, a density of 1.364g/cm3 and a flash point of 197ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
78267-15-9
Jingsj CID
J-1337713-5
Molecular Formula
C13H13NO3S
Chinese Name
4-氧代-2-(苯基氨基)-4,5-二氢噻吩-3-羧酸乙酯
Molecular Weight
263.31200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point147-149ºC
Boiling Point402.2ºC at 760 mmHg
Density1.364g/cm3
Flash Point197ºC

Frequently Asked Questions

What is the CAS number of Ethyl 4-oxo-2-(phenylamino)-4,5-dihydrothiophene-3-carboxylate?

The CAS number of Ethyl 4-oxo-2-(phenylamino)-4,5-dihydrothiophene-3-carboxylate is 78267-15-9.

What are the molecular formula and molecular weight of Ethyl 4-oxo-2-(phenylamino)-4,5-dihydrothiophene-3-carboxylate?

Ethyl 4-oxo-2-(phenylamino)-4,5-dihydrothiophene-3-carboxylate has molecular formula C13H13NO3S and molecular weight 263.31200 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyl 4-oxo-2-(phenylamino)-4,5-dihydrothiophene-3-carboxylate (CAS 78267-15-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1337713-5 (accessed 2026-10-25).

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