2-acetamido-2-deoxy-alpha-D-glucopyranosyluronic acid-(1->4)-[2-amino-2-deoxy-beta-D-glucopyranosyl-(1->7)]-3-deoxy-alpha-D-manno-oct-2-ulopyranonosidonic acid-(2->5)-2-(3-amino)propyl-3-deoxy-alpha-D-manno-oct-2-ulopyranosidonic acid
2-acetamido-2-deoxy-alpha-d-glucopyranosyluronic acid-(1->4)-[2-amino-2-deoxy-beta-d-glucopyranosyl-(1->7)]-3-deoxy-alpha-d-manno-oct-2-ulopyranonosidonic acid-(2->5)-2-(3-amino)propyl-3-deoxy-alpha-d-manno-oct-2-ulopyranosidonic acid
A branched amino tetrasaccharide comprised of a trisaccharide chain of 2-acetamido-2-deoxy-α-<small>D</small>-glucopyranuronic acid, 3-deoxy-α-<small>D</small>-<i>manno</i>-oct-2-ulopyranosonic acid and 3-aminopropyl 3-deoxy-α-<small>D</small>-<i>manno</i>-oct-2-ulopyranosidonic acid residues linked sequentially (1→4) and (2→5). A 2-amino-2-deoxy-β-<small>D</small>-glucopyranose residue is also linked (1→7) to the 3-deoxy-α-<small>D</small>-<i>manno</i>-oct-2-ulopyranosonic acid residue.