3,5-diphenyl-2-thioxo-2,3-dihydrothieno[2,3-d]pyrimidin-4(1H)-one

3,5-二苯基-2-硫代-2,3-二氢噻吩并[2,3-d]嘧啶-4(1H)-酮

Also known as: 2-Mercapto-3,5-diphenylthieno[2,3-d]pyrimidin-4(3H)-one, 2-mercapto-3,5-diphenyl-3H-thieno[2,3-d]pyrimidin-4-one, 3,5-diphenyl-2-sulfanylidene-1H-thieno[2,3-d]pyrimidin-4-one, THIENO[2,3-D]PYRIMIDIN-4(1H)-ONE, 2,3-DIHYDRO-3,5-DIPHENYL-2-THIOXO-, thieno[2,3-d]pyrimidin-4(1h)-one, 2,3-dihydro-3,5-diphenyl-2-thioxo-

3,5-diphenyl-2-thioxo-2,3-dihydrothieno[2,3-d]pyrimidin-4(1H)-one (CAS 142465-09-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C18H12N2OS2 and a molecular weight of 336.43100 g/mol. It is also known as 2-Mercapto-3,5-diphenylthieno[2,3-d]pyrimidin-4(3H)-one, 2-mercapto-3,5-diphenyl-3H-thieno[2,3-d]pyrimidin-4-one and 3,5-diphenyl-2-sulfanylidene-1H-thieno[2,3-d]pyrimidin-4-one. Key properties include a boiling point of 510.9ºC at 760 mmHg, a density of 1.46 g/cm3 and a flash point of 262.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
142465-09-6
Jingsj CID
J-1162767-0
Molecular Formula
C18H12N2OS2
Chinese Name
3,5-二苯基-2-硫代-2,3-二氢噻吩并[2,3-d]嘧啶-4(1H)-酮
Molecular Weight
336.43100 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point510.9ºC at 760 mmHg
Density1.46 g/cm3
Flash Point262.8ºC

Frequently Asked Questions

What is the CAS number of 3,5-diphenyl-2-thioxo-2,3-dihydrothieno[2,3-d]pyrimidin-4(1H)-one?

The CAS number of 3,5-diphenyl-2-thioxo-2,3-dihydrothieno[2,3-d]pyrimidin-4(1H)-one is 142465-09-6.

What are the molecular formula and molecular weight of 3,5-diphenyl-2-thioxo-2,3-dihydrothieno[2,3-d]pyrimidin-4(1H)-one?

3,5-diphenyl-2-thioxo-2,3-dihydrothieno[2,3-d]pyrimidin-4(1H)-one has molecular formula C18H12N2OS2 and molecular weight 336.43100 g/mol.

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

Last updated:

How to cite: Jingsj. "3,5-diphenyl-2-thioxo-2,3-dihydrothieno[2,3-d]pyrimidin-4(1H)-one (CAS 142465-09-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1162767-0 (accessed 2026-10-26).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.