4-Nitrophenyl-beta-L-fucopyranoside is a chromogenic substrate for beta-D-Fucosidase that yields a yellow solution when cleaved.

4-Nitrophenyl-N-acetyl- β-D-galactosaminidep-Nitrophenyl-2-acetamido-2-deoxy-β-D-galactoside; PNP-β-D-GalNAc

4-Nitrophenyl-N-acetyl-alpha-D-glucosaminide is a chromogenic substrate for N-acetyl-beta-D-glucosaminidase that yields a yellow solution following cleavage.

4-Nitrophenyl-N-acetyl-β- D-glucosaminide is a chromogenic β-Glucosaminidase substrate, yielding a yellow solution upon cleavage, used particularly in yeasts and molds.

4-Nitrophenyl-α-D- galactopyranoside is a chromogenic substrate yielding a soluble chromophor for the colorimetric assay of alpha-D-galactosidase upon cleavage. Used for the detection of hydrolases in tissues and membranes.

4-Nitrophenyl-α-D- maltohexaoside is a chromogenic substrate for α-amylase, yielding a yellow solution upon cleavage.

4-Nitrophenyl-α-D- mannopyranoside is a chromogenic alpha-mannosidase substrate, yielding a absorbent solution upon cleavage. 4-Nitrophenyl-α-D- mannopyranoside can be used for crystal structure studies of the complexes of concanavalin A and binding studies with concanavalin A.

4-Nitrophenyl-α-D- glucopyranoside is a chromogenic substrate for alpha-D-glucosidase, yielding a yellow solution upon cleavage. 4-Nitrophenyl-α-D- glucopyranoside is also used for the detection of glucansucrases and for yeast alpha-D-glucosidase and for crystal structure studies of the complexes of concanavalin A.

Chromogenic substrate, yielding a soluble yellow chromophor for the colorimetric assay of α-L-fucosidase, especially in human serum.

4-Nitrophenyl-β-D-fucopyranoside is a chromogenic substrate for β-D-Fucosidase which yields a yellow solution upon cleavage.