Ecological Assessment of Storm Impacts

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Data Collection

Metsulfuron Me

CAS Number: 74223-64-6

Basic Information

The chemical structure of Metsulfuron Me Synonym(s): Ally; DPX-T6376; Escort; Gropper; Metsulfuron-methyl; Metsulfuron methyl ester
Formula: C14H15N5O6S
 Molecular Weight: 381.362
 Melting Point (°C): 158
 Contaminant Type: Metsulfuron Me is an herbicide.

Solubility (in water)

  • Solubility: 1750 - 9500 mg/l g
    Temperature (°C): 25
     pH Value: 5.4 - 6.7
  • Solubility: 109 mg/l e
    Temperature (°C): 25

Toxicity Effects

  • Organism Type: Crustaceans e
    Common Name: Daphnia
     Scientific Name: Daphnia magna
     Toxicity: >150 mg/l
     Test: 48h LC50
  • Organism Type: Fish e
    Common Name: Bluegill
     Scientific Name: Lepomis macrochirus
     Toxicity: >150 mg/l
     Test: 96h LC50
  • Organism Type: Fish e
    Common Name: Rainbow trout
     Scientific Name: Oncorhynchus mykiss
    Toxicity: >150 mg/l
     Test: 96h LC50
  • Organism Type: Mammals g
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: >5000 mg/kg
     Test: LD50

Octanol-Water Partition Coefficients

  • Log Kow: 1 e
    Formulation: pH5
  • Log Kow: -1.9 e
    Formulation: pH7

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

Work Cited

e Verschueren, K. 1996. Handbook of Environmental Data on Organic Chemicals, 3rd edition. John Wiley & Sons, Inc., New York.
g Meister, R. T., and C. Sine (Ed). 2003. Crop Protection Handbook, volume 89. Meister Publishing Company, Willoughby, OH.