D-(-)-Pantolactone (Standard) is the analytical standard of D-(-)-Pantolactone (HY-W010396). This product is intended for research and analytical applications. D-(-)-Pantolactone is an important intermediate that can be used in the synthesis of other active compounds, such as the molluscicide Cyanolide A. D-(-)-Pantolactone is also a calibrant for circular dichroism (CD)[1].