5-Methylpyrazin-2(1H)-one

2-羟基-5-甲基吡嗪

Also known as: 2-Hydroxy-5-methylpyrazine, 5-Methylpyrazin-2-ol, 5-Methyl-2(1H)-pyrazinone, 2(1H)-Pyrazinone, 5-methyl-, 5-Methyl-1H-pyrazin-2-one

CAS No.
20721-17-9
Jingsj CID
J-1157051-0
Molecular Formula
C5H6N2O
Chinese Name
2-羟基-5-甲基吡嗪
Molecular Weight
110.114 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point376.2ºC at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point181.3ºC

Frequently Asked Questions

What is the CAS number of 5-Methylpyrazin-2(1H)-one?

20721-17-9

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

C5H6N2O, molecular weight 110.114 g/mol

Data compiled from public chemical databases and supplier catalogs; verify specifications with suppliers before purchase. · Last updated: 8/21/2026