Ecological Assessment of Storm Impacts

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Data Collection

Oryzalin

CAS Number: 19044-88-3

Basic Information

The chemical structure of Oryzalin Synonym(s): 3,5-Dinitro-N4,N4-dipropylsulfanilamide; 3,5-Dinitro-N',N'-dipropylsulfanilamide; 4-(Dipropylamino)-3,5-dinitrobenzenesulfonamide; Dirimal; N4,N4-dipropyl-3,5-dinitrosulfanilamide
Formula: C12H18N4O6S
 Molecular Weight: 346.357
 Melting Point (°C): 141
 Contaminant Type: Oryzalin is an herbicide.

Solubility (in water)

  • Solubility: 2.5 mg/l g
    Temperature (°C): 25
     pH Value: 7

Toxicity Effects

  • Organism Type: Birds g
    Common Name: Hen
     Toxicity: >1000 mg/kg
     Test: LD50
  • Organism Type: Fish g
    Common Name: Bluegill
     Scientific Name: Lepomis macrochirus
     Toxicity: 2.88 mg/l
     Test: 96h LC50
  • Organism Type: Mammals c
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: 5000 mg/kg
     Test: LD50
     Formulation: Surflan A.S.
  • Organism Type: Mammals g
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: >10000 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.