Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate

7-氨基噻吩并[2,3-b]吡嗪-6-羧酸乙酯

Also known as: 7-Aminothieno[2,3-b]pyrazine-6-carboxylic acid ethyl ester, Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate, 97+%, Thieno[2,3-b]pyrazine-6-carboxylic acid, 7-amino-, ethyl ester

Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate (CAS 56881-21-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H9N3O2S and a molecular weight of 223.25200 g/mol. It is also known as 7-Aminothieno[2,3-b]pyrazine-6-carboxylic acid ethyl ester, Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate, 97+% and Thieno[2,3-b]pyrazine-6-carboxylic acid, 7-amino-, ethyl ester. Key property: a melting point of 119.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
56881-21-1
Jingsj CID
J-1437824-9
Molecular Formula
C9H9N3O2S
Chinese Name
7-氨基噻吩并[2,3-b]吡嗪-6-羧酸乙酯
Molecular Weight
223.25200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point119.5ºC

Frequently Asked Questions

What is the CAS number of Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate?

The CAS number of Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate is 56881-21-1.

What are the molecular formula and molecular weight of Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate?

Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate has molecular formula C9H9N3O2S and molecular weight 223.25200 g/mol.

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

Last updated:

How to cite: Jingsj. "Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate (CAS 56881-21-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1437824-9 (accessed 2026-10-22).

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