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Fig. 1. Schematic structure of RGTA D120. The dextran derivative on the 1-6 glucose polymeric chain contains carboxymethyl (–CH₂COO^–) and sulfate residues (–SO₃^–) at degrees of substitution of 0.26 and 1.92, respectively. Three differently substituted glucosidic units are represented according to the nature of the group linked to the C2 position. For easier interpretation, these units were arranged in an arbitrary combination. R represents the possible substituted groups in the global C3 and C4 positions. The position of each group on the C-2 compared to C-3 + C-4 was also determined by analyzing the anomeric proton signal by ¹H NMR (300 MHz).

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