Ecological Assessment of Storm Impacts

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Data Collection

Cyanazine

CAS Number: 21725-46-2

Basic Information

The chemical structure of Cyanazine Synonym(s): 2-[[4-chloro-6-(ethylamino)-s-triazin-2-yl]amino]-2-methylpropionitrile; 2-Chloro-4-((1-cyano-1-methylethyl)amino)-6-(ethylamino)-s-triazine; Bladex
Formula: C9H13ClN6
 Molecular Weight: 240.695
 Melting Point (°C): 167
 Contaminant Type: Cyanazine is an herbicide.
Notes: White crystalline solid

Solubility (in water)

  • Solubility: 170 mg/l e
    Temperature (°C): 20

Half-Life (in soil unless otherwise noted)

  • t1/2: 1-5 weeks e
  • t1/2: 12-15 days e

Toxicity Effects

  • Organism Type: Fish e
    Scientific Name: Cirrhinus mrigala
     Toxicity: 40 mg/l
     Test: 96h LC100
  • Organism Type: Fish e
    Scientific Name: Cirrhinus mrigala
     Toxicity: 13 mg/l
     Test: 96h LC50
  • Organism Type: Fish e
    Common Name: Mozambique tilapia
     Scientific Name: Oreochromis mossambicus
     Toxicity: 64 mg/l
     Test: 96h LC100
  • Organism Type: Fish e
    Common Name: Mozambique tilapia
     Scientific Name: Oreochromis mossambicus
     Toxicity: 24 mg/l
     Test: 96h LC50
  • Organism Type: Fish e
    Common Name: Harlequin fish
     Scientific Name: Rasbora heteromorpha
     Toxicity: 16 mg/l
     Test: 24h LC50
  • Organism Type: Mammals g
    Common Name: Rat
     Scientific Name: Muridae (Family)
     Toxicity: 288 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

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.