(N)1-Acetylisoniazid 1-Acetyl-2-isonicotinoylhydrazine 1078-38-2 4-22-00-00606 (Beilstein Handbook Reference) 4-Pyridinecarboxylic acid, 2-acetylhydrazide Acetyl isoniazid Acetylisoniazid BRN 0154108 Hydrazine, 1-acetyl-2-isonicotinoyl- N-Acetylisoniazid N-Acetylisonicotinylhydrazide