Nc1c2ccccc2nc2cc([N+](=O)[O-])ccc12 mol26690 0_1 [NH3+]c1c2ccccc2nc2cc([N+](=O)[O-])ccc12 mol26690 1_1 Nc1c2ccccc2[nH+]c2cc([N+](=O)[O-])ccc12 mol26690 1_2