1,4-Bis-(3-(1-adamantyl carbamylguanidino)propyl)piperazine 64169-11-5 CK 492B CK-492B CK0492B Urea, N,N'-(1,4-piperazinediylbis(3,1-propanediyliminocarbonimidoyl)bis(N-tricyclo(3.3.1.1(3,7))dec-1-yl-, dimethanesulfonate