15234-97-6 4,4'-BIPHENYLDICARBOXAMIDE, N,N'-BIS(1-METHYL-4-PHENYL-4-PIPERIDYLMETHYL)- 5-22-09-00506 (Beilstein Handbook Reference) BRN 0469489 N,N'-(1-Methyl-4-phenyl-4-piperidylmethyl)-4,4'-diphenyl bis-carboxamide N,N'-Bis(1-methyl-4-phenyl-4-piperidylmethyl)-4,4'-biphenyldicarboxamide