| Synonyms: | 5,7-Dichloro-4-hydroxy-6'-methoxy-6-methyl-3,4'-dioxospiro[benzofuran-2(3H),1'-cyclohexa[2,5]diene]-2'-carboxylic acid;Erdin;Spiro[benzofuran-2(3H),1'-[2,5]cyclohexadiene]-2'-carboxylic acid, 5,7-dichloro-4-hydroxy-6'-methoxy-6-methyl-3,4'-dioxo- |