(2S,3R,4S,5R,6R)-2-(((2R,3S,4S,5R)-4,5-dihydroxy-2,5-bis(hydroxymethyl)tetrahydrofuran-3-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol; 4-O-?-D-Galactopyranosyl-D-fructofuranose Cephulac; Cholac; Chronulac; Constilac; Constulose; Duphalac; Enulose