5-Chloro-3-methylpyrazin-2(1H)-one

5-氯-3-甲基吡嗪-2(1H)-酮

Also known as: 5-CHLORO-3-METHYL-2(1H)-PYRAZINONE, 5-Chloro-3-methyl-2(1H)-pyrazinone, 5-chloro-3-methyl-1H-pyrazin-2-one, 5-Chloro-3-methyl-pyrazin-2-ol, 2(1H)-Pyrazinone, 5-chloro-3-methyl-

5-Chloro-3-methylpyrazin-2(1H)-one (CAS 105985-18-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H5ClN2O and a molecular weight of 144.55900 g/mol. It is also known as 5-CHLORO-3-METHYL-2(1H)-PYRAZINONE, 5-Chloro-3-methyl-2(1H)-pyrazinone and 5-chloro-3-methyl-1H-pyrazin-2-one. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 105985-18-0
Jingsj CID: J-924275-9
Molecular Formula: C₅H₅ClN₂O
Chinese Name: 5-氯-3-甲基吡嗪-2(1H)-酮
Molecular Weight: 144.55900 g/mol
Category: Ketones
Last updated: 8/21/2026

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Frequently Asked Questions

What is the CAS number of 5-Chloro-3-methylpyrazin-2(1H)-one?

The CAS number of 5-Chloro-3-methylpyrazin-2(1H)-one is 105985-18-0.

What are the molecular formula and molecular weight of 5-Chloro-3-methylpyrazin-2(1H)-one?

5-Chloro-3-methylpyrazin-2(1H)-one has molecular formula C5H5ClN2O and molecular weight 144.55900 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-Chloro-3-methylpyrazin-2(1H)-one (CAS 105985-18-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-924275-9 (accessed 2026-10-24).

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