2-(acetylamino)-2-deoxy-beta-D-glucopyranosyl-(1->4)-[beta-D-mannopyranosyl-(1->5)]-[alpha-D-mannopyranosyl-(1->2)-alpha-D-mannopyranosyl-(1->3)]-[alpha-D-mannopyranosyl-(1->2)-[alpha-D-mannopyranosyl-(1->3)]-alpha-D-mannopyranosyl-(1->6)]-2-(acetylamino)