Nc1nnnn1-c1ccc([N+](=O)[O-])cc1 mol4303 0_1 [NH3+]c1nnnn1-c1ccc([N+](=O)[O-])cc1 mol4303 1_1 Nc1[nH+]nnn1-c1ccc([N+](=O)[O-])cc1 mol4303 1_2 Nc1n[nH+]nn1-c1ccc([N+](=O)[O-])cc1 mol4303 1_3 Nc1nn[nH+]n1-c1ccc([N+](=O)[O-])cc1 mol4303 1_4