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

6-甲基-3H-噻吩并[2,3-d]嘧啶-4-酮

Also known as: 6-Methylthieno[2,3-d]pyrimidin-4(3H)-one, 6-Methylthieno[2,3-d]pyrimidin-4-ol, BUTTPARK 146\18-29, Thieno[2,3-d]pyrimidin-4(1H)-one, 6-methyl-, 6-Methyl-3H,4H-thieno[2,3-d]pyrimidin-4-one, 6-Methylthieno<2,3-d>pyrimid-4-one

6-Methyl-3H-thieno[2,3-d]pyrimidin-4-one (CAS 108831-66-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H6N2OS and a molecular weight of 166.200 g/mol. It is also known as 6-Methylthieno[2,3-d]pyrimidin-4(3H)-one, 6-Methylthieno[2,3-d]pyrimidin-4-ol and BUTTPARK 146\18-29. Key properties include a melting point of 195-200℃ (ethanol ), a boiling point of 406.7±33.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 199.8±25.4 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
108831-66-9
Jingsj CID
J-1176999-2
Molecular Formula
C7H6N2OS
Chinese Name
6-甲基-3H-噻吩并[2,3-d]嘧啶-4-酮
Molecular Weight
166.200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point195-200℃ (ethanol )
Boiling Point406.7±33.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point199.8±25.4 °C

Frequently Asked Questions

What is the CAS number of 6-Methyl-3H-thieno[2,3-d]pyrimidin-4-one?

The CAS number of 6-Methyl-3H-thieno[2,3-d]pyrimidin-4-one is 108831-66-9.

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

6-Methyl-3H-thieno[2,3-d]pyrimidin-4-one has molecular formula C7H6N2OS and molecular weight 166.200 g/mol.

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

Last updated:

How to cite: Jingsj. "6-Methyl-3H-thieno[2,3-d]pyrimidin-4-one (CAS 108831-66-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1176999-2 (accessed 2026-10-25).

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