2,4-Imidazolidinedione, 3,3'-((2,5-dimethyl-1,4-piperazinediyl)bis(methylene))bis(5,5-diphenyl- 26786-96-9 5-24-08-00380 (Beilstein Handbook Reference) BRN 0738684 Hydantoin, 3,3'-((2,5-dimethyl-1,4-piperazinediyl)dimethylene)bis(5,5-diphenyl-