diethyl 5,5'-((2-hydroxypropane-1,3-diyl)bis(oxy))bis(4-oxo-4H-chromene-2-carboxylate);5,5'-[(2-Hydroxy-1,3-propanediyl)bis(oxy)]bis[4-oxo-4H-1-benzopyran-2-carboxylic Acid 2,2'-Diethyl Ester; 5,5'-[(2-Hydroxy-1,3-propanediyl)bis(oxy)]bis[4-oxo-4H-1-benzopyran-2-carboxylic Acid Diethyl Ester; 5,5'-[(2-Hydroxytrimethylene)dioxy]bis[4-oxo-4H-1-benzopyran-2-carboxylic Acid Diethyl Ester; Cromoglycic Acid Diethyl Ester; Cromophene
