English: quinine. French: chinine.
This compound is present in the bark of a group of trees that originally was restricted to South America. Especially species of the genus Cinchona (Family Rubiaceae) were rich in this compound, reaching up to 15 % of the total weight of the bark. Today, such trees are cultivated also in other warm countries such as Indonesia, Malaysia, or the Congo region, obtaining up to 500 t of pure extracts from barks, although the chemical synthesis is used since long.
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