CSc1nc2ncncc2[nH]1 mol4906 0_1 CSc1nc2[nH+]cncc2[nH]1 mol4906 1_1 CSc1[nH]c2cncnc2[nH+]1 mol4906 1_2 CSc1nc2nc[nH+]cc2[nH]1 mol4906 1_3 CSc1nc2ncncc2[n-]1 mol4906 -1_1