Rha(a1-4)GlcA(b1-6)[3)Gal(b1-3)[Rha(a1-4)GlcA(b1-6)]Gal(b1-3)[Rha(a1-4)GlcA(b1-6)]Gal(b1-3)[Ara(a1-6)Gal(b1-6)]Gal(b1-]n