Blood group A pentasaccharide; A-PENTASACCHARIDE; 50624-46-9; 6-Deoxy-α-D-galactopyranosyl-(1->2)-[6-deoxy-α-D-galactopyranosyl-(1->2)-[2-deoxy-2-[(Z)-(1-hydroxyethylidene)amino]-α-D-galactopyranosyl-(1->3)]-β-D-galactopyranosyl-(1->4)]-D-glucopyr anose; D-Glucopyranose, O-6-deoxy-α-D-galactopyranosyl-(1->2)-O-[O-6-deoxy-α-D-galactopyranosyl-(1->2)-O-[2-deoxy-2-[[(1Z)-1-hydroxyethylidene]amino]-α-D-galactopyranosyl-(1->3)]-β-D-galactopy ranosyl-(1->4)]; blood group A