The molecule is a glycoside that consists of ethyl beta-D-galactoside having an alpha-D-galactosyl residue at the 4-position. It is a glycoside and a disaccharide derivative.
(2R,3R,4S,5R,6R)-2-[(2R,3R,4R,5R,6R)-6-ethoxy-4,5-dihydroxy-2-(hydroxymethyl)oxan-3-yl]oxy-6-(hydroxymethyl)oxane-3,4,5-triol