Maltodextrin consists of D-glucose (dextrin) units connected in chains of variable length. The glucose units are linked with α(1→4) bonds. Maltodextrin is typically composed of mixtures of chains that vary from three to nineteen glucose units long. Maltodextrins are classified by DE (dextrose equivalent) and have a DE of 20 or higher, mostly between 5 to 20. Above DE 20, the European Union's CN code calls it glucose syrup.