PDF E ISSN Spectrum of biological properties of cinchona P ISSN alkaloids
i Quinine C2OH24N2O2 The most important and characteristic alkaloids of cinchona contain 16% [3] of quinine Figure 1 in the bark but the percentage varies 6 10% according to the species variety The cinchona representative sample of dried cinchona or cinchona bark is found to be containing 4% [3] It is frequently used as anti