O-4-O-((2,3-DIHYDROXYPROPOXY)HYDROXYPHOSPHINYL)-.ALPHA.-D-GLUCOPYRANOSYL-(1->4)-O-.ALPHA.-D-GALACTOPYRANOSYL-(1->3)-O-.BETA.-D-GALACTOPYRANOSYL-(1->4)-.BETA.-D-GLUCOPYRANOSE
o-4-o-((2,3-dihydroxypropoxy)hydroxyphosphinyl)-.alpha.-d-glucopyranosyl-(1->4)-o-.alpha.-d-galactopyranosyl-(1->3)-o-.beta.-d-galactopyranosyl-(1->4)-.beta.-d-glucopyranose