JERRY MASON / SCIENCE PHOTO LIBRARY JERRY MASON / SCIENCE PHOTO LIBRARY
Combretastatin. Molecular computer graphic of the experimental anti-cancer drug combretastatin. Coloured spheres represent atoms: green = carbon; white = hydrogen; red = oxygen. This compound is obtained from the African shrub Combretum caffrum. Like other natural compounds found to have anti- cancer properties, it may have potential future use as an anticancer drug.
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