C.I. Solvent Yellow 135, ammonium salt

ammonium 2-[7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl]benzoxazole-5-sulphonate

2-[7-(Diethylamino)-2-oxo-2H-1-benzopyran-3-yl]-5-benzoxazolesulfonic acid ammonium salt

5-Benzoxazolesulfonic acid, 2-7-(diethylamino)-2-oxo-2H-1-benzopyran-3-yl-, ammonium salt