Thieno[2,3-d]pyrimidin-4(3H)-one

噻吩并[2,3-d]嘧啶-4(3H)-酮

Also known as: 3,4-Dihydro-4-oxothieno[2,3-d]pyrimidine, 3H-thieno[2,3-d]pyrimidin-4-one, 4-Hydroxythieno[2,3-d]pyrimidine, Thieno[2,3-d]pyrimidin-4(1H)-one, Thieno[2,3-d]pyrimidin-4-ol

Thieno[2,3-d]pyrimidin-4(3H)-one (CAS 14080-50-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4N2OS and a molecular weight of 152.174 g/mol. It is also known as 3,4-Dihydro-4-oxothieno[2,3-d]pyrimidine, 3H-thieno[2,3-d]pyrimidin-4-one and 4-Hydroxythieno[2,3-d]pyrimidine. Key properties include a melting point of 262-265ºC, a boiling point of 391.1±15.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 190.3±20.4 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

14080-50-3

Jingsj CID

J-1120287-1

Molecular Formula

C₆H₄N₂OS

Chinese Name

噻吩并[2,3-d]嘧啶-4(3H)-酮

Molecular Weight

152.174 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026