COc1cc(/C=C/C(=O)O)ccc1O    mol11206    0_1
COc1cc(/C=C/C(=O)O)ccc1[O-]    mol11206    -1_1
COc1cc(/C=C/C(=O)[O-])ccc1O    mol11206    -1_2
COc1cc(/C=C/C(=O)[O-])ccc1[O-]    mol11206    -2_1