Nc1n[nH]c(-c2ccccc2)n1    mol7668    0_1
Nc1nc(-c2ccccc2)[nH][nH+]1    mol7668    1_1
[NH3+]c1n[nH]c(-c2ccccc2)n1    mol7668    1_2
Nc1n[nH]c(-c2ccccc2)[nH+]1    mol7668    1_3