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Demephion

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Demephion

Demephion-O

Demephion-S
Names
IUPAC names
O,O-Dimethyl O-[2-(methylsulfanyl)ethyl] phosphorothioate (demephion-O)
O,O-Dimethyl S-[2-(methylsulfanyl)ethyl] phosphorothioate (demephion-S)
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.221.416 Edit this at Wikidata
UNII
  • InChI=1S/C5H13O3PS2/c1-6-9(10,7-2)8-4-5-11-3/h4-5H2,1-3H3
    Key: IATBEFPCSHFQJS-UHFFFAOYSA-N
  • (demephion-S): InChI=1S/C5H13O3PS2/c1-7-9(6,8-2)11-5-4-10-3/h4-5H2,1-3H3
    Key: PSTWJANBJOHFQJ-UHFFFAOYSA-N
  • (demephion-O): S=P(OC)(OCCSC)OC
  • (demephion-S): O=P(OC)(OC)SCCSC
Properties
C5H13O3PS2
Molar mass 216.25 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

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

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


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