305-33-9 (MONOPHOSPHATE) 4-Pyridinecarboxylic acid, 2-(1-methylethyl)hydrazide 54-92-2 AIDS-010397 AIDS010397 Iproniazid Iproniazid phosphate Isoniazid analog Isonicotinic acid, 2-isopropylhydrazide Marsilid NSC81850 (MONOPHOSPHATE) P887 RO 2-4572