Ecological Assessment of Storm Impacts

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Data Collection

Cypermethrin

CAS Number: 52315-07-8

Basic Information

The chemical structure of Cypermethrin Synonym(s): Cymbush; Cymbush 2E; Cymbush 3E; Cymperator; Cynoff; Cypercare; Cypercopal; Cyperkill; Cypermar; Cypermethrin; Cypermethrin ; Cyrux; Fendona; Flectron
Formula: C22H19Cl2NO3
 Molecular Weight: 416.303
 Boiling Point (°C): 170 - 195
 Melting Point (°C): 60 - 80
 Contaminant Type: Cypermethrin is an insecticide.

Solubility (in water)

  • Solubility: .041 mg/l e
    Temperature (°C): room

Half-Life (in soil unless otherwise noted)

  • t1/2: 2-4 weeks c
    Formulation: Ammo 2.5 EC

Toxicity Effects

  • Organism Type: Algae e
    Scientific Name: Scenedesmus bijuga
     Toxicity: 0.05 mg/l
     Test: 14d EC50, growth
  • Organism Type: Fish e
    Common Name: Stinging catfish
     Scientific Name: Heteropneustes fossils
     Toxicity: 9.1 µg/l
     Test: 96h LC50
  • Organism Type: Fish a
    Common Name: Bluegill
     Scientific Name: Lepomis macrochirus
     Toxicity: <1 µg/l
     Test: 96h LC50
  • Organism Type: Fish e
    Common Name: Rainbow trout
     Scientific Name: Oncorhynchus mykiss
    Toxicity: 55 µg/l
     Test: 24h LC50,S
     Formulation: amount of active ingredient in technical grade
  • Organism Type: Fish e
    Common Name: Rainbow trout
     Scientific Name: Oncorhynchus mykiss
    Toxicity: 11 µg/l
     Test: 24h LC50,S
     Formulation: amount of active ingredient in formulated product
  • Organism Type: Fish g
    Common Name: Rainbow trout
     Scientific Name: Oncorhynchus mykiss
    Toxicity: 0.69 µg/l
     Test: 96h LC50
  • Organism Type: Mammals c
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: 137 mg/kg
     Test: LD50
     Formulation: Ammo 2.5 EC
  • Organism Type: Other c
    Common Name: Aquatic fish and arthropods
     Toxicity: 0.004-3.6 µg/l
     Test: LC50
     Formulation: Ammo 2.5 EC

Octanol-Water Partition Coefficients

  • Log Kow: 4.47; 6.3 e

Resource Map: Click below to open in a new window to view or print.
Potential applications of this contaminant in the St. Johns Water River Management District

Work Cited

a Beyond pesticides fact sheets. Pages retrieved November, 2003 from http://www.beyondpesticides.org. Beyond Pesticides, Washington, DC.
c C&P Press. 2002. EPR Professional Annual CD. Crop Protection Reference. Chemical and Pharmacuetical Press, Inc., New York, NY.
e Verschueren, K. 1996. Handbook of Environmental Data on Organic Chemicals, 3rd edition. John Wiley & Sons, Inc., New York.
g Meister, R. T., and C. Sine (Ed). 2003. Crop Protection Handbook, volume 89. Meister Publishing Company, Willoughby, OH.