Ethyl 5-amino-4-cyano-3-methylthiophene-2-carboxylate

5-氨基-4-氰基-3-甲基-2-噻吩甲酸乙酯

Also known as: Ethyl 5-amino-4-cyano-3-methyl-2-thiophenecarboxylate, 5-Amino-4-cyano-3-methyl-2-thiophenecarboxylic acid ethyl ester, Ethyl 2-amino-3-cyano-4-methylthiophene-5-carboxylate, 5-AMINO-4-CYANO-3-METHYL-THIOPHENE-2-CARBOXYLIC ACID ETHYL ESTER, Thiophene-2-carboxylic acid, 5-amino-4-cyano-3-methyl-, ethyl ester, MFCD00463473, 2-amino-3-cyano-4-methyl-5-carboethoxythiophene, ethyl 5-amino-3-methyl-4-cyano-2-thiophenecarboxylate

Ethyl 5-amino-4-cyano-3-methylthiophene-2-carboxylate (CAS 23903-46-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H10N2O2S and a molecular weight of 210.25300 g/mol. It is also known as Ethyl 5-amino-4-cyano-3-methyl-2-thiophenecarboxylate, 5-Amino-4-cyano-3-methyl-2-thiophenecarboxylic acid ethyl ester and Ethyl 2-amino-3-cyano-4-methylthiophene-5-carboxylate. Key properties include a boiling point of 386.6ºC at 760mmHg, a density of 1.29g/cm3 and a flash point of 187.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
23903-46-0
Jingsj CID
J-28719-7
Molecular Formula
C9H10N2O2S
Chinese Name
5-氨基-4-氰基-3-甲基-2-噻吩甲酸乙酯
Molecular Weight
210.25300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point386.6ºC at 760mmHg
Density1.29g/cm3
Flash Point187.6ºC

Frequently Asked Questions

What is the CAS number of Ethyl 5-amino-4-cyano-3-methylthiophene-2-carboxylate?

The CAS number of Ethyl 5-amino-4-cyano-3-methylthiophene-2-carboxylate is 23903-46-0.

What are the molecular formula and molecular weight of Ethyl 5-amino-4-cyano-3-methylthiophene-2-carboxylate?

Ethyl 5-amino-4-cyano-3-methylthiophene-2-carboxylate has molecular formula C9H10N2O2S and molecular weight 210.25300 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyl 5-amino-4-cyano-3-methylthiophene-2-carboxylate (CAS 23903-46-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28719-7 (accessed 2026-10-22).

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