2,4-dichloro-5,7-dihydrothieno[3,4-d]pyrimidine

Also known as: 2,4-dichloro-5H,7H-thieno[3,4-d]pyrimidine, Thieno[3,4-d]pyrimidine, 2,4-dichloro-5,7-dihydro-, MFCD13250061

2,4-dichloro-5,7-dihydrothieno[3,4-d]pyrimidine (CAS 74901-71-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4Cl2N2S and a molecular weight of 207.08000 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 74901-71-6
Jingsj CID: J-1589594-0
Molecular Formula: C₆H₄Cl₂N₂S
Molecular Weight: 207.08000 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	205.94700
PSA	51.08000
LogP	2.53020

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 2,4-dichloro-5,7-dihydrothieno[3,4-d]pyrimidine?

The CAS number of 2,4-dichloro-5,7-dihydrothieno[3,4-d]pyrimidine is 74901-71-6.

What are the molecular formula and molecular weight of 2,4-dichloro-5,7-dihydrothieno[3,4-d]pyrimidine?

2,4-dichloro-5,7-dihydrothieno[3,4-d]pyrimidine has molecular formula C6H4Cl2N2S and molecular weight 207.08000 g/mol.

What are the upstream and downstream products of 2,4-dichloro-5,7-dihydrothieno[3,4-d]pyrimidine?

For 2,4-dichloro-5,7-dihydrothieno[3,4-d]pyrimidine, Upstream Products: 5,7-dihydrothieno[3,4-d]pyrimidine-2,4(1H,3H)-dione, Methyl 3-((2-methoxy-2-oxoethyl)thio)propanoate, Methyl 4-oxotetrahydrothiophene-3-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. "2,4-dichloro-5,7-dihydrothieno[3,4-d]pyrimidine (CAS 74901-71-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1589594-0 (accessed 2026-11-09).

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