Phosphamidon is an organophosphate insecticide first reported in 1960.[3][2] It acts as a cholinesterase inhibitor.

The commercial product typically exists as a mixture of 70% (Z)-isomer and 30% (E)-isomer.[1]

Toxicity and regulation

Phosphamidon is very highly toxic to mammals and is listed as WHO Hazard Class Ia.[1] A harvester developed symptoms of moderately severe poisoning after working in a field that had been sprayed with the chemical 2 weeks earlier. He collapsed and exhibited significant depression of serum cholinesterase, but recovered completely within 2 days after successful treatment with atropine.[4] International trade of phosphamidon is covered by the Rotterdam Convention.

References

  1. ^ a b c Data Sheet on Pesticides No. 74: Phosphamidon, International Programme on Chemical Safety
  2. ^ a b Bachmann, Fritz (1960). "Phosphamidon, a new phosphate ester with systemic action". Proc. Intern. Cong. Crop. Protection, 4th Congr., Hamburg. 2: P1153-1155.
  3. ^ a b c d e f Jacques, R.; Bein, H. J. (1960). "Toxicology and pharmacology of a new systemic phosphoric acid ester insecticide phosphamidon (2-chloro-2-diethylcarbamoyl-1-methylvinyl dimethyl phosphate)". Archiv für Toxikologie. 18: 316–330. doi:10.1007/BF02226232. S2CID 6714997.
  4. ^ S. Gitelson, J. T. Davidson, A. Werczberger. Phosphamidon poisoning. Br. J. Ind. Med. 22: 236-239, 1965.