Ecological Assessment of Storm Impacts

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Data Collection

Desmedipham

CAS Number: 13684-56-5

Basic Information

The chemical structure of Desmedipham Synonym(s): Betamix 70 WP; Betanal-475; Betanal AM; Betanex; Betanex 70 WP; Carbamic acid, N-phenyl-, 3-((ethoxycarbonyl)amino)phenyl ester; Desmedipham; Ethyl m-hydroxycarbanilate carbanilate
Formula: C16H16N2O4
 Molecular Weight: 300.313
 Melting Point (°C): 120
 Contaminant Type: Desmedipham is an herbicide.

Half-Life (in soil unless otherwise noted)

  • t1/2: 70 days k
    pH Value: 5
  • t1/2: 20 hours k
    pH Value: 7
  • t1/2: 10 minutes k
    pH Value: 9

Toxicity Effects

  • Organism Type: Fish g
    Common Name: Sunfish
     Toxicity: 13.4 mg/l
     Test: 96h LC50
  • Organism Type: Fish g
    Common Name: Rainbow trout
     Scientific Name: Oncorhynchus mykiss
    Toxicity: 3.8 mg/l
     Test: 96h LC50
  • Organism Type: Mammals k
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: 3700 mg/kg
     Test: LD50
     Formulation: formulated product
  • Organism Type: Mammals g
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: 4100 mg/kg
     Test: LD50
     Formulation: Betamix
  • Organism Type: Mammals g
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: >3960 mg/kg
     Test: LD50
     Formulation: Betanex
  • Organism Type: Mammals k
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: 10300 mg/kg
     Test: LD50

Soil Organic Carbon/Water Partition Coefficients

  • Koc: 3.18 k
    Formulation: log

Octanol-Water Partition Coefficients

  • Log Kow: 3.39 k

Work Cited

g Meister, R. T., and C. Sine (Ed). 2003. Crop Protection Handbook, volume 89. Meister Publishing Company, Willoughby, OH.
k Montgomery, J. H. 1993. Agrochemicals Desk Reference: Environmental Data. Lewis Publishers, Boca Raton, FL.