O,O,O′,O′-Tetramethyl O,O′-sulfanediylbis(1,4-phenylene) diphosphorothioate
|Molar mass||466.47 g·mol−1|
|Appearance||white, crystalline solid|
|Density||1.32 g cm−3|
|Melting point||30 °C (86 °F; 303 K)|
|Boiling point||120–125 °C (248–257 °F; 393–398 K) (decomposes)|
|US health exposure limits (NIOSH):|
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
|what is: / ?)(|
In the developing world where the vector-borne disease dengue fever is endemic, temephos is widely used and applied by both private and public pest control in areas of standing water where the Aedes aegypti mosquito breeds in order to reduce the population of this disease-carrying insect. Temephos is also used in the Guinea worm eradication program to kill water fleas that carry guinea worm larvae.
Resistance to temephos by A. aegypti has been seen in Brazil. The Brazilian Aedes aegypti resistance monitoring program detected temephos resistance in A. aegypti populations from several localities in the country in 1999 (Funasa 2000, Lima et al. 2003). In 1999, mosquitoes from the city of Rio de Janeiro were already resistant to temephos.
- "NIOSH Pocket Guide to Chemical Hazards #0589". National Institute for Occupational Safety and Health (NIOSH).
- Abate Product Information
- New York Times article covering its application in Africa
- Lima JB, Da-Cunha MP, Da Silva RC et al. (2003). "Resistance of Aedes aegypti to organophosphates in several municipalities in the State of Rio de Janeiro and Espírito Santo, Brazil". Am. J. Trop. Med. Hyg. 68 (3): 329–33. PMID 12685640.
- NIOSH Pocket Guide to Chemical Hazards
- International Chemical Safety Cards
- Official product site
- Temefos in the Pesticide Properties DataBase (PPDB)