[CH2-][n+]1ccc(/C(O)=C/C(=O)OC)cc1    mol31208    0_1
COC(=O)/C=C(\[O-])c1cc[n+](C)cc1    mol31208    0_2
COC(=O)/C=C(\O)c1cc[n+](C)cc1    mol31208    1_1