. . . . . . . . . . . . . . . . . "experimental"@en . . . . . . . . "7,8-Dihydroxy-1-Methoxy-3-Methyl-10-Oxo-4,10-Dihydro-1h,3h-Pyrano[4,3-B]Chromene-9-Carboxylic Acid"@en . . . . . . . . . . .