7-Chlorothieno[2,3-b]pyrazine

Also known as: Thieno[2,3-b]pyrazine, 7-chloro-, 7-chloro-thieno[2,3-b]pyrazine, 7-Chlorthieno[2,3-b]pyrazine

7-Chlorothieno[2,3-b]pyrazine (CAS 59944-74-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H3ClN2S and a molecular weight of 170.61900 g/mol. Key properties include a boiling point of 299.91ºC at 760 mmHg, a density of 1.531g/cm3 and a flash point of 135.181ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 59944-74-0
Jingsj CID: J-1428880-3
Molecular Formula: C₆H₃ClN₂S
Molecular Weight: 170.61900 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	299.91ºC at 760 mmHg
Density	1.531g/cm3
Flash Point	135.181ºC
Exact Mass	169.97100
PSA	54.02000
LogP	2.34470
Refractive Index	1.71

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. 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 7-Chlorothieno[2,3-b]pyrazine?

The CAS number of 7-Chlorothieno[2,3-b]pyrazine is 59944-74-0.

What are the molecular formula and molecular weight of 7-Chlorothieno[2,3-b]pyrazine?

7-Chlorothieno[2,3-b]pyrazine has molecular formula C6H3ClN2S and molecular weight 170.61900 g/mol.

What are the upstream and downstream products of 7-Chlorothieno[2,3-b]pyrazine?

For 7-Chlorothieno[2,3-b]pyrazine, Upstream Products: Thieno[2,3-b]pyrazine, Ethyl 7-aminothieno[2,3-b]pyrazine-6-carboxylate.

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

Last updated: 8/21/2026

How to cite: Jingsj. "7-Chlorothieno[2,3-b]pyrazine (CAS 59944-74-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1428880-3 (accessed 2026-11-09).

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