The molecule is an amino tetrasaccharide comprising the sequence alpha-L-DeltaHexA(2S)-(1->4)-alpha-D-GlcNS(6S)-(1->4)-alpha-L-IdoA-(1->4)-alpha-D-GlcNS(6S). It is an amino tetrasaccharide, a heparin tetrasaccharide and an oligosaccharide sulfate.
(2R,3R,4S)-2-[(2R,3S,4R,5R,6R)-6-[(2R,3S,4R,5R,6R)-2-carboxy-6-[(2R,3S,4R,5R,6S)-4,6-dihydroxy-5-(sulfoamino)-2-(sulfooxymethyl)oxan-3-yl]oxy-4,5-dihydroxyoxan-3-yl]oxy-4-hydroxy-5-(sulfoamino)-2-(sulfooxymethyl)oxan-3-yl]oxy-4-hydroxy-3-sulfooxy-3,4-dihydro-2H-pyran-6-carboxylic acid