For further processing only. Others 4-Nitrophenyl Phosphate 4-NPP 4-Nitrophenyl Phosphate (4-NPP) 18.104.22.168.2.2 di-Tris salt 4-Nitrophenyl Phosphate (4-NPP) custom fill CustomBiotech product. Please contact your local representative. Will be supplied as "4-Nitrophenyl Phosphate, Di-Tris Salt". Unit of measure is "kg". 4-Nitrophenyl Phosphate, Di-Tris Salt 10270857103 Not Available Reagents, kits en Use 4-Nitrophenyl Phosphate in diagnostic test for the determination of alkaline phosphatase according to the recommendations of the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC). en Substrate for alkaline phosphatase en Appearance: White to slightly yellow, crystalline powder Solubility: Clear, colorless to slightly yellow solution in water 4-NPP, di-Tris (from content found enzymatically): ≥88% 4-NPP (enzymatic): ≥42% Tris (titrimetric): ≥46% Water (K. Fischer): ≤6% 4-NP free: ≤0.07% Reaction rates (alkaline phosphatase): 100±5% Stability: At +2 to +8°C within specification range for 24 months. Store dry. Protect from light.