DDAO phosphate [9H-(1,3-Dichloro-9,9-diMethylacridin-2-one-7-yl) phosphate, diaMMoniuM salt]

DDAO phosphate diammonium is a fluorescent phosphatase substrate. DDAO phosphate diammonium has tunable excitation wavelength (600-650nm) and long emission wavelength (λem=656nm). DDAO phosphate diammonium can be used to detect the activity of different enzymes such as β-galactosidase, sulfatase, protein phosphatase 2A, carboxylesterase 2, human albumin and esterase.