26786-98-1 4-Imidazolidinone, 3,3'-((2-dimethyl-1,4-piperazinediyl)bis(methylene)) bis(5,5-diphenyl-2-thioxo- 5-24-08-00405 (Beilstein Handbook Reference) BRN 0738685 Hydantoin, 3,3'-((2,5-dimethyl-1,4-piperazinediyl)dimethylene)bis(5,5-diphenyl-2-thio-