CCC(C(=O)O)(C(=O)O)c1ccccc1    mol11513    0_1
CCC(C(=O)[O-])(C(=O)O)c1ccccc1    mol11513    -1_1
CCC(C(=O)[O-])(C(=O)[O-])c1ccccc1    mol11513    -2_1