1-Piperazinecarboxamide, 4-(5-oxo-5H-dibenzo(a,d)cyclohepten-10-yl)-N-phenyl- 4-(5-Oxo-5H-dibenzo(a,d)cyclohepten-10-yl)-N-phenyl-1-piperazinecarboxamide 56972-95-3 RMI 61213