Clc1cc2[nH]cnc2cn1    mol7972    0_1
Clc1cc2[nH]c[nH+]c2cn1    mol7972    1_1
Clc1cc2[nH]cnc2c[nH+]1    mol7972    1_2
Clc1cc2[n-]cnc2cn1    mol7972    -1_1