CSc1ncc2nccnc2n1 mol4833 0_1 CSc1nc2nccnc2c[nH+]1 mol4833 1_1 CSc1ncc2nccnc2[nH+]1 mol4833 1_2 CSc1ncc2[nH+]ccnc2n1 mol4833 1_3 CSc1ncc2ncc[nH+]c2n1 mol4833 1_4