5-Bromo-4-chlorothieno[2,3-d]pyrimidine

Also known as: 5-bromo-4-chlorothieno[2,3-d]pyrimidine, Thieno[2,3-d]pyrimidine, 5-bromo-4-chloro-

5-Bromo-4-chlorothieno[2,3-d]pyrimidine (CAS 814918-95-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H2BrClN2S and a molecular weight of 249.51500 g/mol. Key properties include a boiling point of 345.453ºC at 760 mmHg and a density of 1.955 g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 814918-95-1
Jingsj CID: J-1326240-3
Molecular Formula: C₆H₂BrClN₂S
Molecular Weight: 249.51500 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	345.453ºC at 760 mmHg
Density	1.955 g/cm3
Exact Mass	247.88100
PSA	54.02000
LogP	3.10720
Refractive Index	1.736

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 5-Bromo-4-chlorothieno[2,3-d]pyrimidine?

The CAS number of 5-Bromo-4-chlorothieno[2,3-d]pyrimidine is 814918-95-1.

What are the molecular formula and molecular weight of 5-Bromo-4-chlorothieno[2,3-d]pyrimidine?

5-Bromo-4-chlorothieno[2,3-d]pyrimidine has molecular formula C6H2BrClN2S and molecular weight 249.51500 g/mol.

What are the upstream and downstream products of 5-Bromo-4-chlorothieno[2,3-d]pyrimidine?

For 5-Bromo-4-chlorothieno[2,3-d]pyrimidine, Upstream Products: 6-Bromo-4-chlorothieno[2,3-d]pyrimidine, Thieno[2,3-d]pyrimidin-4(3H)-one, 2-Aminothiophene-3-carbonitrile.

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. "5-Bromo-4-chlorothieno[2,3-d]pyrimidine (CAS 814918-95-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1326240-3 (accessed 2026-11-09).

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