Application Chromogenic substrate for use with alkaline and acid phosphatase ELISA procedures. Produces a soluble end product that is yellow in color and can be read spectrophotometrically at 405 nm. The pNPP reaction may be stopped with 3 N NaOH and read at 405 nm. Other Notes Substrate for the determination of acid and alkaline phosphatases. Packaging 1, 5, 10, 25, 50 g in glass bottle |