4-Pyridinecarboxylicacid, (1,2-dimethyl-1,2-ethanediylidene)dihydrazide (9CI); Isonicotinic acid,(dimethylethanediylidene)dihydrazide (6CI); Hydrazine,1,1'-(dimethylethanediylidene)bis[2-isonicotinoyl- (6CI)
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