[CH2-][n+]1cnc2nccnc2c1O    mol26208    0_1
C[n+]1cnc2nccnc2c1[O-]    mol26208    0_2
C[n+]1c[nH+]c2nccnc2c1[O-]    mol26208    1_1
C[n+]1cnc2[nH+]ccnc2c1[O-]    mol26208    1_2
C[n+]1cnc2ncc[nH+]c2c1[O-]    mol26208    1_3
C[n+]1cnc2nccnc2c1O    mol26208    1_4