Abstract Ammi visnaga is widely used in Sudanese herbal medicine where it is used against a wide range of diseases including asthma , urinary calculi and mild anginal symptoms. The plant is diuretic and is claimed to relieve menstruation pain. Ammi visnaga contains, among others, khellin, khellinol, amiol, khellol and khellinin. It also contains coumarins and a fixed oil.
This study was undertaken to investigate the major flavonoid of Ammi visnaga. The flavonoids were extracted with ethanol and the crude extract was purified by thin layer chromatography where a pure flavones was isolated. The structure of the isolated flavone has been partially characterized by some spectral data (UV and 1HNMR).
Keyword: Ammi visnaga, Isolation, Flavonoid, Flavone, Partial Structure.