Product Code Pack Size Sterling Euros Dollars      38103  250mg  £100  €157  $205   p-Nitrophenyl α-L-rhamnopyranoside p-Nitrophenyl alpha-L-rhamnopyranoside; PNP-alpha-L-rhamnoside; 4-Nitrophenyl alpha-L-rhamnoside; p-Nitrophenyl 6-deoxy-alpha-L-mannopyranoside   CAS:  18918-31-5           MF:   C12H15NO7       MW: 285.25   >98% [HPLC]       Free p-Nitrophenol <300ppm   Chromogenic substrate for naringinase.