3,3'-(1,4-Piperazinediyldimethylene)bis(5,5-diphenylhydantoin) 5-24-08-00379 (Beilstein Handbook Reference) 752-51-2 BRN 0875241 Hydantoin, 3,3'-(1,4-piperazinediyldimethylene)bis(5,5-diphenyl- NSC 150489