The molecule is the organosulfate oxoanion formed by deprotonation of the sulfo group in beta-D-GlcpNAc-(1->4)-alpha-D-Glcp2Ac6SOPr. It is a conjugate base of a beta-D-GlcpNAc-(1->4)-alpha-D-Glcp2Ac6SOPr.
[(2R,3S,4S,5R,6R)-3-[(2S,3R,4R,5S,6R)-3-acetamido-4,5-dihydroxy-6-(hydroxymethyl)oxan-2-yl]oxy-5-acetyloxy-4-hydroxy-6-propoxyoxan-2-yl]methyl sulfate