3-Isopropoxy-2-(p-methoxyphenyl)-4-oxo-4H-1-benzopyran-6-carboxylic acid sodium salt 3-Isopropoxy-4'-methoxyflavone-6-carboxylic acid sodium salt 4H-1-BENZOPYRAN-6-CARBOXYLIC ACID, 3-ISOPROPOXY-2-(p-METHOXYPHENYL)-4-OXO-, SODI 4H-1-Benzopyran-6-carboxylic acid, 3-isopropoxy-2-(p-methoxyphenyl)-4-oxo-, sodium salt 72739-69-6