O-Ethyl methylphosphonothioic acid

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O-Ethyl methylphosphonothioic acid
O-Ethyl methylphosphonothioic acid Structural Formula V.1.svg
EMPTA-3D-balls-by-AHRLS.png
Names
Preferred IUPAC name
O-Ethyl hydrogen methylphosphonothioate
Other names
Methyl-phosphonothioic acid O-ethyl ester
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.150.755 OOjs UI icon edit-ltr-progressive.svg
PubChem CID
UNII
  • InChI=1S/C3H9O2PS/c1-3-5-6(2,4)7/h3H2,1-2H3,(H,4,7) Yes check.svgY
    Key: XXNRHOAJIUSMOQ-UHFFFAOYSA-N Yes check.svgY
  • InChI=1/C3H9O2PS/c1-3-5-6(2,4)7/h3H2,1-2H3,(H,4,7)
    Key: XXNRHOAJIUSMOQ-UHFFFAOYAH
  • S=P(O)(OCC)C
Properties
C3H9O2PS
Molar mass 140.14 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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O-Ethyl methylphosphonothioic acid (EMPTA) is an organophosphate compound. A dual-use chemical, it has constructive uses in the synthesis of pesticides and pharmaceuticals, and it is also a precursor in the synthesis of nerve agents such as Agent VM and Agent VX. The detection of EMPTA is cited as a major influence in the United States' 1998 decision to destroy the Al-Shifa pharmaceutical factory in Sudan. [1]

References

  1. ↑ Claudine McCarthy (2005). "EMPTA (O-Ethyl methylphosphonothioic acid)" (Google Books excerpt). In Eric Croddy, James J. Wirtz (ed.). Weapons of mass destruction: an encyclopedia of worldwide policy, technology, and history. Bloomsbury Academic. pp. 123–124. ISBN   1-85109-490-3.
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