The molecule is a synthetic pentasaccharide which, apart from the O-methyl group at the reducing end of the molecule, consists of monomeric sugar units which are identical to a sequence of five monomeric sugar units that can be isolated after either chemical or enzymatic cleavage of the polymeric glycosaminoglycans heparin and heparan sulfate. It has a role as an anticoagulant. It is an amino sugar, an oligosaccharide sulfate and a pentasaccharide derivative. It derives from a normethylfondaparinux. It is a conjugate acid of a fondaparinux(10-).
(2S,3S,4R,5R,6R)-6-[(2R,3R,4R,5R,6R)-6-[(2R,3S,4S,5R,6R)-2-carboxy-4-hydroxy-6-[(2R,3S,4R,5R,6S)-4-hydroxy-6-methoxy-5-(sulfoamino)-2-(sulfooxymethyl)oxan-3-yl]oxy-5-sulfooxyoxan-3-yl]oxy-5-(sulfoamino)-4-sulfooxy-2-(sulfooxymethyl)oxan-3-yl]oxy-3-[(2R,3R,4R,5S,6R)-4,5-dihydroxy-3-(sulfoamino)-6-(sulfooxymethyl)oxan-2-yl]oxy-4,5-dihydroxyoxane-2-carboxylic acid