CNc1ncnc(N)c1[N+](=O)[O-]    mol4100    0_1
C[NH2+]c1ncnc(N)c1[N+](=O)[O-]    mol4100    1_1
CNc1ncnc([NH3+])c1[N+](=O)[O-]    mol4100    1_2
CNc1nc[nH+]c(N)c1[N+](=O)[O-]    mol4100    1_3
CNc1[nH+]cnc(N)c1[N+](=O)[O-]    mol4100    1_4