Slightly Off-White Crystalline Solid
4-Nitrophenyl-N-acetyl-β- D-glucosaminide is a useful substrate for the rapid colorimetric assay of N-Acetyl-beta-glucosaminidase in human urine
Useful substrate for the rapid colorimetric assay of N-Acetyl-beta-glucosaminidase in human urine.
substrate for a-L-fucosidases
ChEBI: An N-acetyl-beta-D-glucosaminide in which the anomeric hydroxy hydrogen is replaced by a 4-nitrophenyl group.
4-Nitrophenyl N-acetyl-β-D-glucosaminide (NP-GlcNAc) is a widely used hexosaminidase substrate. Enzymatic action cleaves the glycosidic bond and forms 4-nitrophenolate (pNP) which is measured at 405 nm. NP-GlcNAc can also be used in combination with diethylaminoethyl-a-cyclodextrin (DEn-CD) for a rapid and accurate rate assay method for b-N-acetylglucosaminidase. The cyclodextrin derivative is used as an additive to ionize 4-nitrophenol to yellow-colored 4-nitrophenoxide at a pH near 5, the pH optimum for the enzyme.
