

4-Nitrophenyl-α-L-fucopyranoside by Molecular Depot is a 4-nitrophenyl-α-L-fucopyranoside, a chromogenic substrate that releases a soluble yellow chromophore for the colorimetric assay of α-L-fucosidase. The nitrophenol released on cleavage absorbs strongly at around 405 nm in alkali, so the reaction is followed in a spectrophotometer or a plate reader without any further step. It is used as a substrate in colorimetric α-L-fucosidase assays, in fucosidosis enzyme testing and in glycosidase activity screening. Each unit contains 50 mg. MBP supplies Molecular Depot carbohydrate reagents to research labs in the United States, Canada and worldwide.