3-(5'-Sulfobenzoxazolyl-2')-7-diethylaminocoumarin, ammonium salt 5-Benzoxazolesulfonic acid, 2-(7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl)-, ammonium salt 68427-37-2 Ammonium 2-(7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl)benzoxazole-5-sulphonate EINECS 270-395-4