O=C(O)CC(C(=O)[O-])=C(c1ccccc1)c1ccccc1    mol35999    -1_1
O=C([O-])CC(C(=O)O)=C(c1ccccc1)c1ccccc1    mol35999    -1_2
O=C([O-])CC(C(=O)[O-])=C(c1ccccc1)c1ccccc1    mol35999    -2_1