NNC(=O)CCC([N+](=O)[O-])[N+](=O)[O-]    mol9232    0_1
NNC(=O)CC[C-]([N+](=O)[O-])[N+](=O)[O-]    mol9232    -1_1
N[N-]C(=O)CCC([N+](=O)[O-])[N+](=O)[O-]    mol9232    -1_2