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QF012227
Synonyms: 3-oxo-3,4-dihydropyrazine-2-carboxamide
Molecular Formula: C5H5N3O2
Molecular Weight: 139.11
CAS No.: 55321-99-8;1237524-82-1(Na salt)
QF012218
Favipiravir Impurity 18
Molecular Formula: C5H2BrN3O
Molecular Weight: 199.99
CAS No.: 2305633-62-7
QF012227
Favipiravir Impurity 27
Molecular Formula: C5H5N3O2
Molecular Weight: 139.11
CAS No.: 55321-99-8;1237524-82-1(Na salt)