Synonyms: Coumarin,3,3'-(2-methoxyethylidene)bis[4-hydroxy- (6CI,7CI,8CI);1-Methoxy-2,2-bis[4-hydroxy-3-coumarinyl]ethane;2,2-Bis(4-hydroxy-3-coumarinyl)-1-methoxyethane;Bis-3,3'-(4-hydroxycoumarinyl)-1-(2-methoxyethane);2H-1-Benzopyran-2-one,3,3'-(2-methoxyethylidene)bis[4-hydroxy-; Cumetharol;Cumethoxaethane