Ecological Assessment of Storm Impacts

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Data Collection

Pyridate

CAS Number: 55512-33-9

Basic Information

The chemical structure of Pyridate Synonym(s): O-(6-chloro-3-phenyl-4-pyridazinyl) S-octyl carbonothioate; 6-Chloro-3-phenylpridazin-4-yl S-octyl thiocarbonate; CL 11344; Fenpyrate; Lentagran; Octyl o-(6-chloro-3-phenylpyridazin-4-yl)carbothioate
Formula: C19H23ClN2O2S
 Molecular Weight: 378.916
 Contaminant Type: Pyridate is an herbicide.

Solubility (in water)

  • Solubility: 1.5 mg/l g
    pH Value: 7

Toxicity Effects

  • Organism Type: Algae c
    Common Name: green algae
     Toxicity: 82.12 mg/l
     Test: 5d EC50
     Formulation: Tough 5EC
  • Organism Type: Birds g
    Common Name: bobwhite quail
     Scientific Name: Colinus virginianus
     Toxicity: 1269-1502 mg/kg
     Test: LD50
  • Organism Type: Crustaceans c
    Common Name: Daphnia
     Scientific Name: Daphnia magna
     Toxicity: 0.83 mg/l
     Test: 48h LC50
     Formulation: Tough 5EC
  • Organism Type: Fish c
    Common Name: Bluegill
     Scientific Name: Lepomis macrochirus
     Toxicity: 100 mg/l
     Test: 96h LC50
    Formulation: Tough 5EC
  • Organism Type: Fish g
    Common Name: Rainbow trout
     Scientific Name: Oncorhynchus mykiss
    Toxicity: 81 mg/l
     Test: 96h LC50
  • Organism Type: Fish c
    Common Name: Rainbow trout
     Scientific Name: Oncorhynchus mykiss
    Toxicity: 1.4 mg/l
     Test: 96h LC50
    Formulation: Tough 5EC
  • Organism Type: Mammals g
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: 2000 mg/kg
     Test: LD50

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

c C&P Press. 2002. EPR Professional Annual CD. Crop Protection Reference. Chemical and Pharmacuetical Press, Inc., New York, NY.
g Meister, R. T., and C. Sine (Ed). 2003. Crop Protection Handbook, volume 89. Meister Publishing Company, Willoughby, OH.