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Table 1 Chemical shift assignments for 1H-NMR and 13C-NMR spectra of agaro-oligosaccharides

From: Antioxidant activity and hepatoprotective potential of agaro-oligosaccharides in vitro and in vivo

Unit Chemical shifts (ppm)
   C-1 C-2 C-3 C-4 C-5 C-6
Carbon G a 102.3 70.6 82.3 68.7 75.2 61.2
  A b 98.1 69.9 79.7 77.1 75.5 69.4
Proton G 4.39 3.79 3.6 4.12 3.55 3.63 c/3.67 d
  A 4.97 3.96 4.37 4.48 4.4 3.84 e/4.06 f
  1. a galactose.
  2. b anhydrogalactose.
  3. c A-6 exo proton
  4. d A-6'endo proton
  5. e G-6 proton
  6. f G-6' proton