Cc1cc(Cl)cc(Cl)c1OCC(=O)O    mol33020    0_1
Cc1cc(Cl)cc(Cl)c1OCC(=O)[O-]    mol33020    -1_1
Cc1cc(Cl)cc(Cl)c1O[CH-]C(=O)O    mol33020    -1_2