Cc1nc(N)c2nccnc2n1 mol4740 0_1 Cc1nc2nccnc2c(N)[nH+]1 mol4740 1_1 Cc1nc(N)c2ncc[nH+]c2n1 mol4740 1_2 Cc1nc(N)c2[nH+]ccnc2n1 mol4740 1_3 Cc1nc([NH3+])c2nccnc2n1 mol4740 1_4 Cc1nc(N)c2nccnc2[nH+]1 mol4740 1_5