Chlorthiophos

Chlorthiophos
Names
IUPAC name
(2,5-dichloro-4-methylsulfanylphenoxy)-diethoxy-sulfanylidene-λ5-phosphane
Other names
Celathion; Celamerck S-2957; Caswell No. 310A
Identifiers
CAS Number
  • 60238-56-4 checkY
3D model (JSmol)
  • Interactive image
ChemSpider
  • 484552
ECHA InfoCard 100.040.588 Edit this at Wikidata
PubChem CID
  • 30859
UNII
  • O256QW5Y0Q checkY
CompTox Dashboard (EPA)
  • DTXSID9041786 Edit this at Wikidata
InChI
  • InChI=1S/C11H15Cl2O4PS/c1-4-15-18(14,16-5-2)17-10-6-9(13)11(19-3)7-8(10)12/h6-7H,4-5H2,1-3H3
    Key: ZYZAICVMEBZORH-UHFFFAOYSA-N
  • InChI=1/C11H15Cl2O4PS/c1-4-15-18(14,16-5-2)17-10-6-9(13)11(19-3)7-8(10)12/h6-7H,4-5H2,1-3H3
    Key: ZYZAICVMEBZORH-UHFFFAOYAM
  • CCOP(=S)(OCC)OC1=CC(=C(C=C1Cl)SC)Cl
Properties
Chemical formula
 C11H15Cl2O3PS2
Molar mass 361.24 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound

Chlorthiophos is an organophosphorus pesticide. It is a mixture of isomers:

O,O-diethyl-O-(2,5-dichloro-4-methylthio)phenyl phosphorothioate (ca. 73%)

O,O-diethyl-O-(4,5-dichloro-2-methylthio)phenyl phosphorothioate (ca. 13%)

O,O-diethyl-O-(2,4-dichloro-5-methylthio)phenyl phosphorothioate (ca. 14%)

It is extremely poisonous and is classified as an extremely hazardous substance in the United States as defined in Section 302 of the U.S. Emergency Planning and Community Right-to-Know Act (42 U.S.C. 11002), and is subject to strict reporting requirements by facilities which produce, store, or use it in significant quantities.[1]

References

  1. ^ "40 C.F.R.: Appendix A to Part 355—The List of Extremely Hazardous Substances and Their Threshold Planning Quantities" (PDF) (July 1, 2008 ed.). Government Printing Office. Archived from the original (PDF) on February 25, 2012. Retrieved October 29, 2011. {{cite journal}}: Cite journal requires |journal= (help)