5-Methylpyrazine-2-carboxamide

Also known as: 5-Methyl-2-pyrazinecarboxamide, 5-Methylpyrazinamide, 5-Methylpyrazine-2-carboxamide, 2-Pyrazinecarboxamide, 5-methyl-, Pyrazinecarboxamide, 5-methyl- (7CI,8CI,9CI)

5-Methylpyrazine-2-carboxamide (CAS 5521-57-3) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C6H7N3O and a molecular weight of 137.139 g/mol. Key properties include a melting point of 212ºC, a boiling point of 307.8±42.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 139.9±27.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 5521-57-3
Jingsj CID: J-1497287-3
Molecular Formula: C₆H₇N₃O
Molecular Weight: 137.139 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	212ºC
Boiling Point	307.8±42.0 °C at 760 mmHg
Density	1.2±0.1 g/cm3
Flash Point	139.9±27.9 °C
Exact Mass	137.058914
PSA	68.87000
LogP	0.09
Vapor Pressure	0.0±0.7 mmHg at 25°C
Refractive Index	1.567

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. other heterocyclic compounds. 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 5-Methylpyrazine-2-carboxamide?

The CAS number of 5-Methylpyrazine-2-carboxamide is 5521-57-3.

What are the molecular formula and molecular weight of 5-Methylpyrazine-2-carboxamide?

5-Methylpyrazine-2-carboxamide has molecular formula C6H7N3O and molecular weight 137.139 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "5-Methylpyrazine-2-carboxamide (CAS 5521-57-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1497287-3 (accessed 2026-11-09).

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