1,3-Diazaspiro(4.5)decane-2,4-dione, 3,3'-(1,4-piperazinediyldimethylene)bis- 15115-29-4 3,3'-(1,4-Piperazinediyldimethylene)bis(1,3-diazaspiro(4.5)decane-2,4-dione) 5-24-07-00296 (Beilstein Handbook Reference) BRN 0732120 Hydantoin, 3,3'-(piperazine-1,4-diyldimethylene)bis(5,5-pentamethylene- N,N-Bis(5,5-pentamethylenohydantoinylo-3-metylo)-piperazyna [Polish]