O=C(O)CCC(CCC(=O)O)[N+](=O)[O-]    mol10242    0_1
O=C([O-])CCC(CCC(=O)O)[N+](=O)[O-]    mol10242    -1_1
O=C([O-])CCC(CCC(=O)[O-])[N+](=O)[O-]    mol10242    -2_1