Nc1cc2cccnc2c2ncccc12    mol26598    0_1
[NH3+]c1cc2cccnc2c2ncccc12    mol26598    1_1
Nc1cc2cccnc2c2[nH+]cccc12    mol26598    1_2
Nc1cc2ccc[nH+]c2c2ncccc12    mol26598    1_3