4-Nitrophenyl b-D-celloheptaoside is a chromogenic substrate that reacts with the enzyme peroxidase to produce chemiluminescence. This substrate is used for diagnostics and research in the field of cell biology. 4-Nitrophenyl b-D-celloheptaoside is a high quality chemical that has been tested for its environmental effects. It can be used for staining, ligand binding, and as a fluorogenic substrate.