((9-Methoxy-7-oxo-7H-furo(3,2-g)(1)benzopyran-4-yl)methyl)trimethylammonium chloride 96616-39-6 Ammonium, ((9-methoxy-7-oxo-7H-furo(3,2-g)(1)benzopyran-4-yl)methyl)trimethyl-, chloride