[O-]c1c[nH+]cnc1O mol4172 0_1 Oc1cncnc1O mol4172 0_2 [O-]c1nc[nH+]cc1O mol4172 0_3 [O-]c1cnc[nH+]c1O mol4172 0_4 Oc1c[nH+]cnc1O mol4172 1_1 Oc1cnc[nH+]c1O mol4172 1_2 [O-]c1c[nH+]c[nH+]c1O mol4172 1_3 [O-]c1ncncc1O mol4172 -1_1 [O-]c1c[nH+]cnc1[O-] mol4172 -1_2 [O-]c1cncnc1O mol4172 -1_3 [O-]c1cncnc1[O-] mol4172 -2_1