Abstract

• The stem bar of all. uchinsa as selected for the phytochemical screening, the determination of the cytoxicity of the crude extract, the isolation of pure organic compound and the identification of the structure of the isolated compound. The cytotoxic activity of the crude extract as determined in ea cells by , dimethylthiaolyl,diphenyltetraolium bromide MTT assay and it shoed high activity ith IC value of .gm. The pure organic compound KKW-1 as isolated by thin layer and column chromatographic separation techniques. The molecular formula of the isolated compound could be observed according to the RM spectral data. The molecular formula of compound KKW-1 is found as C. In addition, the complete structure of naphthoquinone compound KKW-1 as elucidated by applying D and D MR spectroscopy