1,1'-(1,4-Piperazinediyldimethylene)bis(2-(methylthio)-4,4-diphenyl-2-imidazolin-5-one) 2-Imidazolin-5-one, 1,1'-(1,4-piperazinediyldimethylene)bis(2-(methylthio)-4,4-diphenyl- 21616-56-8 BRN 0738377