2-Hydroxy-3-methylpyrazine

2-羟基-3-甲基吡嗪

Also known as: 3-methylpyrazin-2(1H)-one, 3-methyl-2(1H)-pyrazinone, 3-methylpyrazin-2-ol, 3-methyl-2-pyrazinol, 3-methyl-(1H)-pyrazin-2-one, 3-methyl-1H-pyrazin-2-one

2-Hydroxy-3-methylpyrazine (CAS 19838-07-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H6N2O and a molecular weight of 110.114 g/mol. It is also known as 3-methylpyrazin-2(1H)-one, 3-methyl-2(1H)-pyrazinone and 3-methylpyrazin-2-ol. Key properties include a melting point of 150 °C, a boiling point of 376.2±37.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 181.3±26.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
19838-07-4
Jingsj CID
J-1497259-7
Molecular Formula
C5H6N2O
Chinese Name
2-羟基-3-甲基吡嗪
Molecular Weight
110.114 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point150 °C
Boiling Point376.2±37.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point181.3±26.5 °C

Frequently Asked Questions

What is the CAS number of 2-Hydroxy-3-methylpyrazine?

The CAS number of 2-Hydroxy-3-methylpyrazine is 19838-07-4.

What are the molecular formula and molecular weight of 2-Hydroxy-3-methylpyrazine?

2-Hydroxy-3-methylpyrazine has molecular formula C5H6N2O and molecular weight 110.114 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Hydroxy-3-methylpyrazine (CAS 19838-07-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1497259-7 (accessed 2026-10-22).

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