Synonyms: Diazenecarboxylicacid, phenyl-, 2-phenylhydrazide (9CI);Formic acid, (phenylazo)-,2-phenylhydrazide (6CI,8CI);1,5-Diphenylcarbazone;3-Hydroxy-1,5-diphenylformazan;Diazenecarbohydrazonic acid, N,2-diphenyl-;Diphenylcarbazone;Hydrazinecarboxamide, 2-phenyl-N-(phenylimino)-;s-Diphenylcarbazone;