

4-Nitrophenyl Phosphate Di(tris) Salt by Molecular Depot is a 4-nitrophenyl phosphate di(tris) salt, a substrate for phosphatases. Alkaline phosphatase cleavage releases 4-nitrophenol, read at 405 nm. It is used as the standard colorimetric substrate for alkaline phosphatase in ELISA and enzyme assays. Each unit contains 100 mg. MBP supplies Molecular Depot research reagents to research labs in the United States, Canada and worldwide.