Difucosyllactose; LDFT; 6-Deoxy-α-L-galactopyranosyl-(1->3)-[6-deoxy-α-L-galactopyranosyl-(1->2)-α-D-galactopyranosyl-(1->2)]-D-glucose; D-Glucose, O-6-deoxy-α-L-galactopyranosyl-(1->3)-O-[O-6-deoxy-α-L-galactopyranosyl-(1->2)-α-D-galactopyranosyl-(1->2)]-; Lactodifucotetraose; LDFT Glycan; 6-Deoxy-?-L-galactopyranosyl-(1->3)-[6-deoxy-?-L-galactopyranosyl-(1->2)-?-D-galactopyranosyl-(1->2)]-D-glucose