Alkaloids are a group o naiturally occurrin chemical compoonds, that contain maistly basic nitrogen atoms. This group an aa includes some relatit compoonds wi neutral[2] an even weakly acidic properties.[3] Some synthetic compoonds o similar structur are an aa attributit tae alkaloids.[4] In addeetion tae carbon, hydrogen an nitrogen, alkaloids mey an aa contain oxygen, sulfur an mair rarely ither elements such as chlorine, bromine, an phosphorus.[5]

The first individual alkaloid, morphine, wis isolatit in 1804 frae poppy (Papaver somniferum).[1]


  1. Andreas Luch (2009). Molecular, clinical and environmental toxicology. Springer. p. 20. ISBN 3-7643-8335-6.
  2. IUPAC. Compendium of Chemical Terminology, 2nd ed. (The "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997) ISBN 0-9678550-9-8 doi:10.1351/goldbook
  3. R. H. F. Manske. The Alkaloids. Chemistry and Physiology. Volume VIII. – New York: Academic Press, 1965, p. 673
  4. Robert Alan Lewis. Lewis' dictionary of toxicology. CRC Press, 1998, p. 51 ISBN 1-56670-223-2
  5. Chemical Encyclopedia: alkaloids.