COc1cc(C(=O)O)cc(OC)c1O    mol10904    0_1
COc1cc(C(=O)O)cc(OC)c1[O-]    mol10904    -1_1
COc1cc(C(=O)[O-])cc(OC)c1O    mol10904    -1_2
COc1cc(C(=O)[O-])cc(OC)c1[O-]    mol10904    -2_1