Fig. 5From: Identification of chemical constituents of Zanthoxylum heitzii stem bark and their insecticidal activity against the malaria mosquito Anopheles gambiae HPLC chromatogram of Zanthoxylum heitzii bark hexane extract, UV-detection at 237Â nm. 2: Dihydronitidine; 3: Sesamin; 4: PellitorineBack to article page