Cc1cc(C)c(C=CC(=O)O)c(O)c1 mol11510 0_1 Cc1cc(C)c(C=CC(=O)O)c([O-])c1 mol11510 -1_1 Cc1cc(C)c(C=CC(=O)[O-])c(O)c1 mol11510 -1_2