3'-Galactosyllactose 32694-82-9 D-Glucose, O-beta-D-galactopyranosyl-(1-3)-O-beta-D-galactopyranosyl-(1-4)- GAGGL Gal(alphal-3)-gal(betal-4)glc Gal(beta1-3)-gal(beta1-4)glc Galactosyl alpha (1-3)-galactosyl beta (1-4)glucose