octyl-2,3-di-O-sulfo-alpha-L-fucopyranosyl-(1-3)-2-O-sulfo-alpha-L-fucopyranosyl-(1-4)-2,3-di-O-sulfo-alpha-L-fucopyranosyl-(1-3)-2-O-sulfo-alpha-L-fucopyranosyl-(1-4)-2,3-di-O-sulfo-beta-L-fucopyranoside