13C NMR Fringerprints of Scutellariae Baicalensis
黄芩的13C NMR指纹图谱研究

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.