Application
Substrate for the histochemical demonstration of acid and alkaline phosphatase.
Specificity
Naphthol AS-TR Phosphate is a substrate for use with alkaline phosphatase in immunoblotting and immunohistological staining procedures. When Naphthol AS-TR Phosphate is used in conjunction with Fast Red RC Tablets (Sigma Product No. F 5146) an insoluble end product is produced that is red in color and can be observed visually. Naphthol AS-TR Phosphate Tablets may also be used with other coupling salts in other applications.