6-tert-butyl-3H-thieno[2,3-d]pyrimidin-4-one

Also known as: 6-(tert-Butyl)thieno[2,3-d]pyrimidin-4(3H)-one, 6-tert-butylthieno[2,3-d]pyrimidin-4(3H)-one, 6-(tert-Butyl)thieno[2,3-d]pyrimidin-4(1H)-one, 6-tert-butylthieno[2,3-d]pyrimidin-4-ol, Thieno[2,3-d]pyrimidin-4(1H)-one, 6-(1,1-dimethylethyl)-

6-tert-butyl-3H-thieno[2,3-d]pyrimidin-4-one (CAS 439692-54-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H12N2OS and a molecular weight of 208.28000 g/mol. Key property: a density of 1.29. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 439692-54-3
Jingsj CID: J-1336188-1
Molecular Formula: C₁₀H₁₂N₂OS
Molecular Weight: 208.28000 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Density	1.29
Exact Mass	208.06700
PSA	73.99000
LogP	2.28210

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 6-tert-butyl-3H-thieno[2,3-d]pyrimidin-4-one?

The CAS number of 6-tert-butyl-3H-thieno[2,3-d]pyrimidin-4-one is 439692-54-3.

What are the molecular formula and molecular weight of 6-tert-butyl-3H-thieno[2,3-d]pyrimidin-4-one?

6-tert-butyl-3H-thieno[2,3-d]pyrimidin-4-one has molecular formula C10H12N2OS and molecular weight 208.28000 g/mol.

What are the upstream and downstream products of 6-tert-butyl-3H-thieno[2,3-d]pyrimidin-4-one?

For 6-tert-butyl-3H-thieno[2,3-d]pyrimidin-4-one, Upstream Products: methyl 2-amino-5-tert-butylthiophene-3-carboxylate, Methanimidic acid, (Z)-; Downstream Products: 6-tert-butyl-4-chlorothieno[2,3-d]pyrimidine.

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. "6-tert-butyl-3H-thieno[2,3-d]pyrimidin-4-one (CAS 439692-54-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1336188-1 (accessed 2026-11-09).

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