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

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. 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-1437824-6
Molecular Formula
C9H9N3O2S
Molecular Weight
223.25200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point119.5ºC
Exact Mass223.04200
PSA106.34000
LogP2.03140
Storage Conditions2-8°C

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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.

What are the upstream and downstream products of Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate?

For Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate, Upstream Products: Ethyl thioglycolate, 3-Chloropyrazine-2-carbonitrile; Downstream Products: 7-aminothieno[2,3-b]pyrazine-6-carboxylic acid, Thieno[2,3-b]pyrazine, 7-Chlorothieno[2,3-b]pyrazine.

Data compiled from public chemical databases such as PubChem 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-1437824-6 (accessed 2026-11-09).

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