Glycyrhizin or Glycyrrhizin: How To spell?

The word Glycyrhizin is misspelled against Glycyrrhizin, a noun meaning "A glucoside found in licorice root (Glycyrrhiza), in monesia bark (Chrysophyllum), in the root of the walnut, etc., and extracted as a yellow, amorphous powder, of a bittersweet taste."