chitobiose

thumb|200px|right|Glucosamine dissaccharide form of chitobiose thumb|200px|right|N,N'-diacetylglucosamine dimer form of chitobiose

Chitobioses are a group of related disaccharides of β-1,4-linked glucosamine units. The term chitobiose is sometimes used to refer to different members of the group, depending on the method by which it was first isolated, resulting in some ambiguity as to which chemical compound the name is referring to.