Ecological Assessment of Storm Impacts

Overview > Data Collection

Data Collection

Methomyl

CAS Number: 16752-77-5

Basic Information

The chemical structure of Methomyl Synonym(s): Acetamidic acid, thio-, N-[(methyl-carbamoyl)oxy]-, Methyl ester; Lannabait; Lannate; Lannate LB; Lannate(R); Lanox; Lanox 216; LANOX 90; Mesomile
Formula: C5H10N2O2S
 Molecular Weight: 162.206
 Boiling Point (°C): 144
 Melting Point (°C): 78
 Contaminant Type: Methomyl is an insecticide.

Solubility (in water)

  • Solubility: 5.8 g/100g g

Half-Life (in soil unless otherwise noted)

  • t1/2: 3-5 days g
    Environment: Following leaf application

Toxicity Effects

  • Organism Type: Fish g
    Common Name: Bluegill
     Scientific Name: Lepomis macrochirus
     Toxicity: 0.8 mg/l
     Test: 96h LC50
  • Organism Type: Fish g
    Common Name: Rainbow trout
     Scientific Name: Oncorhynchus mykiss
    Toxicity: 3.4 mg/l
     Test: 96h LC50
  • Organism Type: Fish e
    Common Name: Fathead minnow
     Scientific Name: Pimephales promelas
     Toxicity: 2.1 mg/l
     Test: 4d LC50
  • Organism Type: Mammals g
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Gender: Female
     Toxicity: 24 mg/kg
     Test: LD50
  • Organism Type: Mammals g
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Gender: Male
     Toxicity: 17 mg/kg
     Test: LD50

Octanol-Water Partition Coefficients

  • Log Kow: -0.09 e

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

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.