Demephion is an organothiophosphate insecticide. It is a mixture of two closely related structural isomers demephion-O and demephion-S.[1]

Demephion-S is listed as an extremely hazardous substance according to the U.S. Emergency Planning and Community Right-to-Know Act.[2]

References

  1. ^ demephion in the Pesticide Properties DataBase (PPDB), accessed on 2019-01-24.
  2. ^ 40 CFR Part 355 Appendix A Extremely Hazardous Chemicals