6-Chloro-3-oxo-3,4-dihydropyrazine-2-carboxamide

6-氯-3-氧代-3,4-二氢吡嗪-2-甲酰胺

Also known as: 6-Chloro-3-hydroxypyrazine-2-carboxamide, 6-chloro-3-oxo-4H-pyrazine-2-carboxamide, 5-chloro-2-oxo-1H-pyrazine-3-carboxamide, Favipiravir Impurity 3, Favipiravir Impurity 4, Favipiravir Impurity 8, 2-Pyrazinecarboxamide, 6-chloro-3,4-dihydro-3-oxo-

6-Chloro-3-oxo-3,4-dihydropyrazine-2-carboxamide (CAS 259793-90-3) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C5H4ClN3O2 and a molecular weight of 173.557 g/mol. It is also known as 6-Chloro-3-hydroxypyrazine-2-carboxamide, 6-chloro-3-oxo-4H-pyrazine-2-carboxamide and 5-chloro-2-oxo-1H-pyrazine-3-carboxamide. Key properties include a boiling point of 536.3±50.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 278.1±30.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

259793-90-3

Jingsj CID

J-1496507-2

Molecular Formula

C₅H₄ClN₃O₂

Chinese Name

6-氯-3-氧代-3,4-二氢吡嗪-2-甲酰胺

Molecular Weight

173.557 g/mol

Category

Organic Bases

Last updated

8/21/2026