4H-1-Benzopyran-2-carboxylic acid, 5,5′-[(2-hydroxy-1,3-propanediyl)bis(oxy)]bis[4-oxo-, 2,2′-diethyl ester
4H-1-Benzopyran-2-carboxylic acid, 5,5′-[(2-hydroxytrimethylene)dioxy]bis[4-oxo-, diethyl ester
4H-1-Benzopyran-2-carboxylic acid, 5,5′-[(2-hydroxy-1,3-propanediyl)bis(oxy)]bis[4-oxo-, diethyl ester
2,2′-Diethyl 5,5′-[(2-hydroxy-1,3-propanediyl)bis(oxy)]bis[4-oxo-4H-1-benzopyran-2-carboxylate]
Cromoglycic acid diethyl ester
Diethyl cromoglycate
Cromophene