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Table 1 1H chemical shift assignments for hyaluronan

From: Hyaluronic acid–lipid binding

Proton number (see Fig. 1) Experimental
High-molecular weight polymer (ppm)
Literaturea
Low-molecular weight polymer (ppm)
Literatureb
HA6 (ppm)
N-acetyl glucosamine
 H1 4.55 4.55 4.55
 H2 3.83 3.83 3.84
 H3 c(3.71) c3.73 3.71
 H4 3.51 3.51 3.52
 H5 3.48 3.47 3.48
 H6 3.9 3.91 3.91
 H6ʹ c(3.71) 3.71 3.76
 H-CH3 2.02 2.01 2.02
d-glucuronic acid
 H1 4.45 4.46 4.46
 H2 3.33 3.34 3.34
 H3 3.58 3.58 3.58
 H4 c(3.71) 3.74 3.74
 H5 c(3.71) 3.72 3.70
  1. a In D2O at 30 ° [39]
  2. bIn 10% D2O/H2O at 24 °C [40]
  3. cUnresolved resonance