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Isoniazid
C6H7N3O 137.14
 4-Pyridinecarboxylic acid, hydrazide;
 Isonicotinic acid hydrazide [54-85-3]

DEFINITION

Isoniazid contains NLT 98.0% and NMT 102.0% of isoniazid (C6H7N3O), calculated on the dried basis.

USP REFERENCE STANDARDS FOR PURCHASE

USP Isoniazid RS
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