Gaxilose, also known as 4-Galactosylxylose, a synthetic disaccharide and a substrate of intestinal lactase. Gaxilose is used in a new noninvasive diagnostic test based on urine or serum measurement of D-xylose after lactase cleavage of orally administered
(2R)-Glycerol-O-β-D-galactopyranoside is a substrate for β-galactosidase, the lactose repressor, the galactose-binding protein, and the β-methylgalactoside transport system. It also serves as a substrate for the third lac operon encoded enzyme, thiogalactoside transacetylase.
1,6-Anhydro-D-galactose is a carbohydrate found in liquid smoke flavorings that is used as a tracer of the contribution of biomass burning to total atmospheric particulate matter.
6-O-beta-D-Galactopyranosyl-D-galactose, a disaccharide, is a constituent of the polysaccharide backbone characterized by beta-(1→6) glycoside linkages, with a side chain attached to the primary chain through a beta-(1→3) bond.