3(2H)-Benzofuranone, 4,6,7-trimethoxy-

4,9-dimethoxy-7-oxo-2,3-dihydro-7H-furo[3,2-g]chromene-6-carboxylic acid

4,6,7-trimethoxy-benzofuran

4,6,7-trimethoxy-2,3-dihydro-benzofuran

6-hydroxy-4,7-dimethoxy-2,3-dihydro-benzofuran-5-carbaldehyde