1,4-Piperazinedicarboxamidine, N,N''-bis((p-chlorophenyl)amidino)-2,5-dimethyl-, dihydrochloride 18413-31-5 N,N''-Bis((p-chlorophenyl)amidino)-2,5-dimethyl-1,4-piperazinedicarboxamidine 2HCl