O=C(O)CC(=O)Oc1cccc([N+](=O)[O-])c1    mol35998    0_1
O=C(O)[CH-]C(=O)Oc1cccc([N+](=O)[O-])c1    mol35998    -1_1
O=C([O-])CC(=O)Oc1cccc([N+](=O)[O-])c1    mol35998    -1_2