35285-73-5 4-22-00-00665 (Beilstein Handbook Reference) 4-Pyridinecarboxylic acid, 2-((4-(acetylamino)phenyl)sulfonyl)hydrazide BRN 0333608 ISONICOTINIC ACID, 2-(((p-ACETAMIDO)PHENYL)SULFONYL)HYDRAZIDE N(sub 1)-Isonicotinoyl-N(sub 2)-p-acetyl-amino-benzen-sulfonhydrazine [French]