CCOC(=O)C(c1c(O)c2ccccc2oc1=O)c1c(O)c2ccccc2oc1=O    mol30021    0_1
CCOC(=O)C(c1c([O-])c2ccccc2oc1=O)c1c(O)c2ccccc2oc1=O    mol30021    -1_1
CCOC(=O)[C-](c1c(O)c2ccccc2oc1=O)c1c(O)c2ccccc2oc1=O    mol30021    -1_2