Abstract: ¹³C NMR spectra of Scutellariae baicalensis extracts were obtained. The ¹³C NMR chemical shifts were assigned. The results suggest that the ¹³C NMR spectra of Scutellariae baicalensis extracts show good repeatability, and the spectral characteristics of the extracts obtained from different Scutellariae baicalensis sample were, in general, similar to those effective flavonoid components baicalein, oroxylin A, wogonin and baicalin. Therefore, the ¹³C NMR fingerprints of Scutellariae baicalensis extract may be used as a criterion to check the authenticity of Scutellariae baicalensis and Scutellariae baicalensis products.

Key words:

NMR, scutellariae baicalensis, ¹³C NMR fingerprint, identificetion