N-((3R,4R,5S,6R)-5-(((2S,3R,4R,5S,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-2-yl)oxy)-2,4-dihydroxy-6-(hydroxymethyl)tetrahydro-2H-pyran-3-yl)acetamide; 2-(Acetylamino)-4-O-[2-(acetylamino)-2-deoxy-?-D-glucopyranosyl]-2-deoxy-D-glucose; Bis(N-acetyl)chitobiose; Chitobiose Diacetate; N,N’-Diacetyl-D-chitobiose