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


28.3.2024

Data bank of environmental properties of chemicals


Chemical
2,4-D isooctyl ester
CAS-number :
25168-26-7
 
Synonyms :
2,4-D iso-oktyyliesteri
2,4-D(IOE)
2,4-dichlorophenoxyacetic acid
Acetic acid, (2,4-dichlorophenoxy)-, isooctyl ester
isooctylester
 
Sumformula of the chemical :
C16H22Cl2O3
EINECS-number :
2467043
 
State and appearance :
dark liquid
 
Molecular weight :
333.28
 
Water solubility, mg/l :
10 
 
Boiling point, °C :
317 
 
Effects on plants :
2,4-D iso-oktyyli esteriä ruiskutettiin 0.25 kg/ha -> puolukka-ja
mustikkasatojen väheneminen 1 - 3 vuoden kuluttua
ruiskutuksesta (Raatikainen & Raatikainen 1979).
 
LC50 values to crustaceans, mg/l :
2.4  96 hr, Gammarus lacustris, Sanders 1969
  --
2.4  67 %, 96hr, Gammarus fasciatus
  Johnson & Finley 1980
 
LC50 values to fishes, mg/l :
50  > 50, Salmo clarci, Woodward 1982
 
NOEC values to fishes, mg/l :
10  srv, act, Salmo gairdneri
srv, act, Oncorhynchus kisutch

References
1778Johnson, W.W. & Finley, M.T. 1980. Handbook of acute toxicity of chemicals to fish and aquatic invertebrates. U.S. Department of Interior, Fish & Wildlife Services, Resource Publication 137, Washington D.C.
946Meehan, W.R., Norris, L.A. & Sears, H.S. 1974. Toxicity of various formulations of 2,4-D to salmonids in Southeast Alaska. J. Fish. Res. Board Can. 31(4): 480 - 485.
1727Raatikainen, M. & Raatikainen, T. 1979. Lehvästöruiskutusaineiden harkittu käyttö säästää marjasadot. Kasvinsuojelulehti 12: 37 - 41.
1221Sanders, H.O. 1969. Toxicity of pesticides to the Crustacean, Gammarus lacustris. Bureau of Sport Fisheries and Wildlife technical paper 25, Government Printing Office, Washington, D.C.
1567Woodward, D.F. 1982. Acute toxicity of mixtures of range management herbicides to cutthroat trout. J. Range Manage 35: 539.

 
 
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