2,4-Imidazolidinedione, 5,5-bis(4-methylphenyl)-3-(3-(4-hydroxy-4-phenyl-1-piperidinyl)propyl)- 3-(3-(4-Hydroxy-4-phenyl-1-piperidyl)propyl)-5,5-di-(4-tolyl)hydantoin 56079-97-1 TR 3163