Ecological Assessment of Storm Impacts

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Dimethipin

CAS Number: 55290-64-7

Basic Information

The chemical structure of Dimethipin Synonym(s): Harvade; 2,3-Dihydro-5,6-dimethyl-1,4-dithiin 1,1,4,4-tetraoxide; Dihydro-5,6-dimethyl-1,4-dithiin-1,1,4,4-tetraoxide; Oxydimethiin;Ttetrathiin; UNI-N252
Formula: C6H10O4S2
Molecular Weight: 210.263
Melting Point (°C): 167 - 169
Contaminant Type: Dimethipin is a contaminant with other or multiple types of use.
Notes: Defoliant, vine disiccant, maturation growth regulant

Solubility (in water)

  • Solubility: 2500 - 3000 mg/l g

Toxicity Effects

  • Organism Type: Birds g
    Common Name: bobwhite quail
    Scientific Name: Colinus virginianus
    Toxicity: 5000 mg/l
    Test: 8d LC50
  • Organism Type: Birds g
    Common Name: bobwhite quail
    Scientific Name: Colinus virginianus
    Toxicity: 896 mg/kg
    Test: LD50
  • Organism Type: Crustaceans c
    Common Name: Daphnia
    Scientific Name: Daphnia magna
    Toxicity: 21 mg/l
    Test: 96h LC50
    Formulation: Harvade-5F
  • Organism Type: Fish g
    Common Name: Bluegill
    Scientific Name: Lepomis macrochirus
    Toxicity: 20.9 mg/l
    Test: 96h LC50
  • Organism Type: Fish g
    Common Name: Rainbow trout
    Scientific Name: Oncorhynchus mykiss
    Toxicity: 52.8 mg/l
    Test: 96h LC50
  • Organism Type: Mammals g
    Common Name: Rat
    Scientific Name: Muridae (Family)
    Toxicity: 500 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.