2-mercapto-3,5,6-trimethylthieno[2,3-d]pyrimidin-4(3H)-one

2-巯基-3,5,6-三甲基噻吩并[2,3-d]嘧啶-4(3H)-酮

Also known as: 2,3-dihydro-3,5,6-trimethyl-2-thioxothieno[2,3-d]pyrimidin-4(1H)-one, 2-mercapto-3,5,6-trimethyl-3H-thieno[2,3-d]pyrimidin-4-one, 3,5,6-trimethyl-2-sulfanyl-3H,4H-thieno[2,3-d]pyrimidin-4-one, 3,5,6-trimethyl-2-sulfanylidene-1H-thieno[2,3-d]pyrimidin-4-one, 3,5,6-trimethyl-2-thioxo-2,3-dihydrothieno[2,3-d]pyrimidin-4(1H)-one, thieno[2,3-d]pyrimidin-4(1H)-one, 2,3-dihydro-3,5,6-trimethyl-2-thioxo-

2-mercapto-3,5,6-trimethylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 59898-59-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H10N2OS2 and a molecular weight of 226.31800 g/mol. It is also known as 2,3-dihydro-3,5,6-trimethyl-2-thioxothieno[2,3-d]pyrimidin-4(1H)-one, 2-mercapto-3,5,6-trimethyl-3H-thieno[2,3-d]pyrimidin-4-one and 3,5,6-trimethyl-2-sulfanyl-3H,4H-thieno[2,3-d]pyrimidin-4-one. Key properties include a boiling point of 390ºC at 760 mmHg, a density of 1.42g/cm3 and a flash point of 189.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
59898-59-8
Jingsj CID
J-1502257-2
Molecular Formula
C9H10N2OS2
Chinese Name
2-巯基-3,5,6-三甲基噻吩并[2,3-d]嘧啶-4(3H)-酮
Molecular Weight
226.31800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point390ºC at 760 mmHg
Density1.42g/cm3
Flash Point189.6ºC

Frequently Asked Questions

What is the CAS number of 2-mercapto-3,5,6-trimethylthieno[2,3-d]pyrimidin-4(3H)-one?

The CAS number of 2-mercapto-3,5,6-trimethylthieno[2,3-d]pyrimidin-4(3H)-one is 59898-59-8.

What are the molecular formula and molecular weight of 2-mercapto-3,5,6-trimethylthieno[2,3-d]pyrimidin-4(3H)-one?

2-mercapto-3,5,6-trimethylthieno[2,3-d]pyrimidin-4(3H)-one has molecular formula C9H10N2OS2 and molecular weight 226.31800 g/mol.

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

Last updated:

How to cite: Jingsj. "2-mercapto-3,5,6-trimethylthieno[2,3-d]pyrimidin-4(3H)-one (CAS 59898-59-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1502257-2 (accessed 2026-10-24).

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