2,4-Imidazolidinedione, 5-(4-aminophenyl)-5-phenyl-3-(3-(4-phenyl-1-piperidinyl)propyl)- 3-(3-(4-Phenyl-1-piperidyl)propyl)-5-(4-aminophenyl)-5-phenylhydantoin 5-(4-Aminophenyl)-5-phenyl-3-(3-(4-phenyl-1-piperidinyl)propyl)-2,4-imidazolidinedione 56079-92-6 TR 3021