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Data bank of environmental chemicals     |     The Finnish Environment Institute (SYKE)
 


29.3.2024

Data bank of environmental properties of chemicals


Chemical
Fenchlorphos
CAS-number :
299-84-3
 
Synonyms :
Fenklorfossi
O,O-dimethyl-O-(2,4,5-trichlorophenyl)-phosphorothioate
O,O-dimetyyli-O-(2,4,5-trikloorifenyyli)tiofosfaatti
Phosphorothioic acid, O,O-dimethyl O-(2,4,5-trichlorophenyl) ester
ronnel.
 
Sumformula of the chemical :
C8H8Cl3O3PS
EINECS-number :
2060826
 
Uses :
insecticide
 
Molecular weight :
321.54
 
Vapor pressure, mmHg :
0.0008  25°C
 
Water solubility, mg/l :
40  room temperature
 
Melting point, °C :
40  40 - 42
42 
 
LD50 values to mammals in oral exposure, mg/kg :
906  orl-rat, Lewis & Sweet 1984
420  orl-rbt, - " -
 
LD50 values to mammals in non-oral exposure , mg/kg :
1000  skn-rbt, Lewis & Sweet 1984
400  unk-mam, - " -
 
LD50 values to birds in oral exposure, mg/kg :
80  orl-bwd, Lewis & Sweet 1984
500  orl-trk, Lewis & Sweet 1984
  --
75  75.0 - 80.0, orl-Agelaius phoeniceus
80 
353  353 - 375, orl-Sturnus vulgaris
375  Schafer et al. 1983
 
LC50 values to crustaceans, mg/l :
0.002  act, Daphnia pulex, Frear & Boyd 1967
  --
0.0057  act, Daphnia magna, Kenaga 1979
 
LC50 values to fishes, mg/l :
0.74  Salmo gairdneri, Kenaga 1979
Lepomis macrochirus
  --
0.31  96 hr, Pimephales promelas, Solon &
  Nair 1970
 
Other information of water organisms :
LOEC 3.16 mg/l, Colpidium campylum (Dive et al. 1980).

References
343Dive, D., Leclerc, H., Persoone, G. 1980. Pesticide toxicity on the ciliate protozoan Colpidium campylum and possible consequences of the effect of pesticides in the aquatic environment. Ecotoxicol. Environ. Saf. 4(2): 129 - 133.
447Frear, D.E.H. & Boyd, J.E. 1967. Use of Daphnia magna for microbioassay of pesticides, I.J.Econom. Entomol. 60: 1228 - 1238.
705Kenaga, E.E. 1979. Acute and chronic toxicity of 75 pesticides to various animal species. Down to earth 35(2): 25 - 31.
1589Lewis, R.J. & Sweet, D.V. 1984. Registry of toxic effects of chemical substances. National Institute for Occupational Safety and Health. No. 83-107-4.
1743Schafer , E.W.Jr., Bowles, W.A.Jr., Hurlbut, J. 1983. The acute oral toxicity, repellency and hazard potential of 993 chemicals to one or more species of wild and domestic birds. Arch. Environ. Contam. Toxicol. 12: 355 - 382.
1332Solon, J.M. & Nair, J.H. 1970. The effect of a sublethal concentration of LAS on the acute toxicity of various phosphate pesticides to the fathead minnow Pimephales promelas Rafinesque, Bull. Environm. Contam. Toxicol. 5(5): 408 - 413.

 
 
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