Cellobionic acid is produced by ozonization of Cellobiose. Cellobionic acid was not a good substrate for B-Glucosidase. The lactonized carboxyl group inhibited the enzymic hydrolysis. This inhibitory effect of Cellobionic acid was removed by gluconolactonase.Form:Off-White SolidMelting Point:>75°C (dec.)Solubility:DMSO, Water