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2-Hydroxy-6-methylpyrazine

Also known as: 6-Methylpyrazin-2-ol, 6-Methylpyrazin-2(1H)-one, 2-Hydroxy-6-methylpyrazine, 6-Methyl-1H-pyrazin-2-one, 2-Pyrazinol, 6-methyl-

2-Hydroxy-6-methylpyrazine (CAS 20721-18-0) 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. Key properties include 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.
20721-18-0
Jingsj CID
J-1148427-8
Molecular Formula
C5H6N2O
Molecular Weight
110.114 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point376.2±37.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point181.3±26.5 °C
Exact Mass110.048012
PSA46.01000
LogP-0.54
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.557

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 2-Hydroxy-6-methylpyrazine?

The CAS number of 2-Hydroxy-6-methylpyrazine is 20721-18-0.

What are the molecular formula and molecular weight of 2-Hydroxy-6-methylpyrazine?

2-Hydroxy-6-methylpyrazine has molecular formula C5H6N2O and molecular weight 110.114 g/mol.

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

Last updated:

How to cite: Jingsj. "2-Hydroxy-6-methylpyrazine (CAS 20721-18-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1148427-8 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.