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13C NMR spectra of Adenophyllum aurantium extracts. NMR measurements were performed in a Bruker ASCENDTM 400 (400 MHz proton frequency) spectrometer at 298 K. Chemical shifts (δ) are reported in ppm from tetramethylsilane (TMS). Solvents used were CD3OD (A,B) and DMSOd6 (C).
