Research Article

Activity Screening of the Herb Caesalpinia sappan and an Analysis of Its Antitumor Effects

Figure 4

HPLC chromatogram for water extract (SY⑥), hydromethanolic extract (SY⑤), n-butanol extract (SY④), ethyl acetate extract (SY③), and petroleum ether extract (SY②) prepared from the stems and leaves of C. sappan.