5-(5-Methyl-2-pyridinyl)thieno[2,3-d]pyrimidin-4(1H)-one

5-(5-Methyl-2-pyridinyl)thieno[2,3-d]pyrimidin-4(1H)-one (CAS 256507-03-6) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C12H9N3OS and a molecular weight of 243.29 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 256507-03-6
Jingsj CID: J-1894444-4
Molecular Formula: C₁₂H₉N₃OS
Molecular Weight: 243.29 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 5-(5-Methyl-2-pyridinyl)thieno[2,3-d]pyrimidin-4(1H)-one?

The CAS number of 5-(5-Methyl-2-pyridinyl)thieno[2,3-d]pyrimidin-4(1H)-one is 256507-03-6.

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

5-(5-Methyl-2-pyridinyl)thieno[2,3-d]pyrimidin-4(1H)-one has molecular formula C12H9N3OS and molecular weight 243.29 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-(5-Methyl-2-pyridinyl)thieno[2,3-d]pyrimidin-4(1H)-one (CAS 256507-03-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1894444-4 (accessed 2026-10-24).

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