Ecological Assessment of Storm Impacts

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Data Collection

Fenamiphos

CAS Number: 22224-92-6

Basic Information

The chemical structure of Fenamiphos Synonym(s): Bay 68138; Bay SRA 3886; Nemacur; nemacur p; Nemacur(R); Phenamiphos; Phosphoroamidic acid, isopropyl-, 4-(methylthio)-m-tolyl ethyl ester;
Formula: C13H22NO3PS
 Molecular Weight: 303.36
 Melting Point (°C): 49
 Contaminant Type: Fenamiphos is an insecticide.
Notes: Nematicide. Crystalline solid

Solubility (in water)

  • Solubility: 329 mg/l p
    Temperature (°C): 20

Half-Life (in soil unless otherwise noted)

  • t1/2: <4 days b

Toxicity Effects

  • Organism Type: Mammals c
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Gender: Male
     Toxicity: 10 mg/kg
     Test: LD50
     Formulation: Nemacur
  • Organism Type: Mammals c
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Gender: Female
     Toxicity: 14 mg/kg
     Test: LD50
     Formulation: Nemacur
  • Organism Type: Molluscs b
    Common Name: Molluscs
     Toxicity: 1000-1790 µg/l
     Test: EC50

Octanol-Water Partition Coefficients

  • Log Kow: 3.23 p

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Potential applications of this contaminant in the St. Johns Water River Management District

Work Cited

b AQUIRE (AQUatic toxicity Information REtrieval) database (As part of the ECOTOX Database). Pages retreived February, 2003 from http://www.epa.gov/ecotox/. USEPA, Washington, DC.
c C&P Press. 2002. EPR Professional Annual CD. Crop Protection Reference. Chemical and Pharmacuetical Press, Inc., New York, NY.
p Syracuse Research Corporation Databases. Pages retrieved November, 2003 from: http://esc.syrres.com. Syracuse Research Corporation, North Syracuse, NY.