NNc1c2ccccc2nc2ccccc12 mol8376 0_1 NNc1c2ccccc2[nH+]c2ccccc12 mol8376 1_1 [NH3+]Nc1c2ccccc2nc2ccccc12 mol8376 1_2 N[NH2+]c1c2ccccc2nc2ccccc12 mol8376 1_3