The molecule is a beta-D-galactopyranosyl-(1->4)-D-galactopyranose with a beta-configuration at the reducing end anomeric center. It has a role as a bacterial metabolite.
(2R,3R,4S,5R,6S)-2-(hydroxymethyl)-6-[(2R,3R,4R,5R,6R)-4,5,6-trihydroxy-2-(hydroxymethyl)oxan-3-yl]oxyoxane-3,4,5-triol