Figure 2.
Structural characterization of CsA: (a) 1H-NMR spectra of CA, CS, and CsA in D2O/HCl at 25 °C. (b) 13C-NMR spectra of CA, CS, and CsA in D2O/HCl at 25 °C. (c) ATR-FTIR spectra of CA, CS, and CsA.
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