Research Article
Isolation of Oxyberberine and β-Sitosterol from Berberis lycium Royle Root Bark Extract and In Vitro Cytotoxicity against Liver and Lung Cancer Cell Lines
Figure 4
1H-NMR (a) and 13C-NMR (b) spectra of β-sitosterol recorded in CDCl3. The chemical shift (d) values are given in ppm with TMS as internal standard, and coupling constants (J) are in Hz.
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