The molecule is a linear copolymer macromolecule composed of homopolymeric blocks of 1->4-linked beta-D-mannuronic acid and alpha-L-guluronic acid residues, covalently linked together in different sequences or blocks. It has a role as a hematologic agent. It is a copolymer macromolecule, a heteroglycan and an exopolysaccharide. It is a conjugate acid of an alginate.
(3S,4S,5S,6R)-3,4,5,6-tetrahydroxyoxane-2-carboxylic acid