2-(7-(Diethylamino)-2-oxo-2H-1-benzopyran-3-yl)benzoxazole-5-sulphonamide 3-(5-(Aminosulfonyl)benzoxazolyl-2)-7-(diethylamino)coumarin 5-Benzoxazolesulfonamide, 2-(7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl)- 68427-35-0 Albert Yellow EINECS 270-393-3