Description_x000D_ General description_x000D_ 4-Nitrophenyl N-acetyl-β-D-galactosaminide is a chromogenic substrate for enzymes N-acetyl-β-D-galactosaminidase and N-Acetyl-β-D-hexosaminidase. It is membrane-permeable and serves as a substrate for the enzyme 6-sulfotransferase in Golgi vesicles._x000D_ Application_x000D_ 4-Nitrophenyl N-acetyl-β-D-galactosaminide has been used:_x000D_ • as a synthetic substrate in the glycosyl hydrolase assay of Yersinia pseudotuberculosis protein_x000D_ • as a substrate in -β-hexosaminidase assay in adenocarcinomic human alveolar basal epithelial cells A549_x000D_ • as a substrate for N-acetyl-β-D-galactosaminidase assay in rat kidney tissue extracts_x000D_ Packaging_x000D_ 1 g in poly bottle_x000D_ 250 mg in poly bottle