Cc1ncnc2c1ncn2C    mol8286    0_1
Cc1nc[nH+]c2c1ncn2C    mol8286    1_1
Cc1[nH+]cnc2c1ncn2C    mol8286    1_2
Cc1ncnc2c1[nH+]cn2C    mol8286    1_3