Common name: Triazophos
Chemical name: 0, O-diethyl o-(1-phenyl-1H-1, 2, 4-triazol-3-yl) phosphorothioate
Physical and chemical properties: Pure triazophos is a yellowish oil liquid; M. P. 2-5; V. P. 13 mPa(55); Density 1.25; Solubility(20 ), 30-40mg/kg water; Soluble in most organic solvents. Tech grade (80% min AI) is stable in normal conditions. 20% EC is a brown -yellowish liquid, stable in normal stored conditions.
Acute oral LD50, for rats 82 mg/kg. For dogs 320 mg/kg; Acute percutaneous LD50 for rats 1100mg/kg. In 2-year feeding trials rats receiving 1 ppm diet and dogs 0.3 ppm diet only direct effect was inhibition of blood serum cholinesterase. Fish toxicity LC50 (48-h), for crucian 8.4 mg/l. ADI for man 0.002 mg/kg body weight.