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5,6,7,8-Tetrahydro[1]benzothieno[2,3-d]pyrimidine-4(3H)-thione

Also known as: 5,6,7,8-Tetrahydrobenzo[4,5]thieno[2,3-d]pyrimidine-4(3H)-thione, 5,6,7,8-Tetrahydrobenzo[b]thieno[2,3-d]pyrimidine-4(3H)-thione, [1]Benzothieno[2,3-d]pyrimidine-4(3H)-thione, 5,6,7,8-tetrahydro-, 8-thia-4,6-diazatricyclo[7.4.0.0^{2,7}]trideca-1(9),2(7),5-triene-3-thione, 5,6,7,8-Tetrahydro[1]benzothieno[2,3-d]pyrimidine-4-thiol

5,6,7,8-Tetrahydro[1]benzothieno[2,3-d]pyrimidine-4(3H)-thione (CAS 40277-39-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H10N2S2 and a molecular weight of 222.33000 g/mol. Key properties include a boiling point of 404.9ºC at 760 mmHg, a density of 1.58 g/cm3 and a flash point of 198.7ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40277-39-2
Jingsj CID
J-881425-3
Molecular Formula
C10H10N2S2
Molecular Weight
222.33000 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point404.9ºC at 760 mmHg
Density1.58 g/cm3
Flash Point198.7ºC
Exact Mass222.02900
PSA89.01000
LogP3.23270
Refractive Index1.838

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 5,6,7,8-Tetrahydro[1]benzothieno[2,3-d]pyrimidine-4(3H)-thione?

The CAS number of 5,6,7,8-Tetrahydro[1]benzothieno[2,3-d]pyrimidine-4(3H)-thione is 40277-39-2.

What are the molecular formula and molecular weight of 5,6,7,8-Tetrahydro[1]benzothieno[2,3-d]pyrimidine-4(3H)-thione?

5,6,7,8-Tetrahydro[1]benzothieno[2,3-d]pyrimidine-4(3H)-thione has molecular formula C10H10N2S2 and molecular weight 222.33000 g/mol.

What are the upstream and downstream products of 5,6,7,8-Tetrahydro[1]benzothieno[2,3-d]pyrimidine-4(3H)-thione?

For 5,6,7,8-Tetrahydro[1]benzothieno[2,3-d]pyrimidine-4(3H)-thione, Upstream Products: 5,6,7,8-Tetrahydro[1]benzothieno[2,3-d]pyrimidin-4(1H)-one, Cyclohexanone, Ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate.

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

Last updated:

How to cite: Jingsj. "5,6,7,8-Tetrahydro[1]benzothieno[2,3-d]pyrimidine-4(3H)-thione (CAS 40277-39-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-881425-3 (accessed 2026-11-09).

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