The molecule is an amino sugar phosphate that is 4-O-[4-O-(N-acetyl-alpha-D-glucosaminylphospho)-N-acetyl-alpha-D-glucosaminylphospho]-N-acetyl-alpha-D-glucosamine linked glycosidically to a (3-aminopropoxy)(hydroxy)phosphoryl group. It is a conjugate acid of a 4-O-[4-O-(2-acetamido-2-deoxy-alpha-D-glucosylphospho)-2-acetamido-2-deoxy-alpha-D-glucosylphospho]-2-acetamido-2-deoxy-alpha-D-glucosyl 3-aminopropyl phosphate(3-).
[(2R,3R,4R,5S,6R)-3-acetamido-5-[[(2R,3R,4R,5S,6R)-3-acetamido-5-[[(2R,3R,4R,5S,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-hydroxyphosphoryl]oxy-4-hydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-hydroxyphosphoryl]oxy-4-hydroxy-6-(hydroxymethyl)oxan-2-yl] 3-aminopropyl hydrogen phosphate