

4-Nitrophenyl-β-D- Fucopyranoside by Molecular Depot is a 4-nitrophenyl-β-D-fucopyranoside, a chromogenic substrate for β-D-fucosidase that gives a yellow solution on cleavage. The nitrophenol released on cleavage absorbs strongly at around 405 nm in alkali, so the reaction is followed directly in a spectrophotometer or a plate reader. It is used as a substrate in colorimetric β-D-fucosidase assays, in microbial and plant glycosidase screening and in enzyme assay development. Each unit contains 1 g. MBP supplies Molecular Depot carbohydrate reagents to research labs in the United States, Canada and worldwide.