Formula
        C10-H12-Cl3-O2-P-S
       
      
      
      
        Major Category
        Pesticides
       
      
     
    
   
  Synonyms
  5082A; Agrisil; Agritox; BAY 37289; Bayer 37289; Bayer 5081; Bayer S 4400; Chemagro 37289; ENT 25,712; Ethyl trichlorophenylethylphosphonothioate; Fenophosphon; Fitosol; O-Aethyl-O-(2,4,5-trichlorphenyl)-aethylthionophosphonat [German]; O-Ethyl O-(2,4,5-trichlorophenyl) ethylthiophosphonate; O-Ethyl O-2,4,5-trichlorophenyl ethylphosphonothioate; OMS 412; OMS 578; Phenol, 2,4,5-trichloro-, O-ester with O-ethyl ethylphosphonothioate; Phytosol; Richloronate; S 4400; Stauffer N-3049; Trichloronat; Wirkstoff 37289; Phosphonothioic acid, ethyl-, O-ethyl O-(2,4,5-trichlorophenyl) ester; [ChemIDplus] UN3018
 
  Category
  Organophosphate Insecticides
 
  Description
  Amber liquid; Formulated as emulsifiable concentrate, granules, or seed dressing powder; [HSDB] Liquid; [Aldrich MSDS]
 
  Sources/Uses
  Used as an insecticide against vegetable fly larvae and soil pests; Not marketed in the USA or Canada; [HSDB] No active product registrations in the US; [NPIRS]
 
  Comments
  A small number of the organophosphates (OPs) can Induce Delayed Neuropathy (OPIDN). OPIDN usually occurs after ingestion and is usually nonoccupational. [Levy, p. 431] A highly toxic cholinesterase inhibitor; Reports of delayed neurotoxicity; [CAMEO] May cause irritation; A highly toxic cholinesterase inhibitor; Readily absorbed through skin (toxic); May be fatal by ingestion; Targets CNS, heart, blood, and eyes; [Aldrich MSDS] “The average of two baseline respective cholinesterase activity determinations three days apart, with no exposures to enzyme inhibiting pesticides for at least 30 days, is recommended for each worker prior to exposure to cholinesterase inhibitors because of large inter-individual differences in published baseline values. To be established at least once a year. Removal from workplace exposures is recommended until the cholinesterase activity returns to within 20% of baseline.” [TLVs and BEIs]
 
  BEI
  Acetylcholinesterase activity in red blood cells = 70% of individual's baseline; Butylcholinesterase activity in serum or plasma = 60% of individual's baseline; Sample at end of shift; [TLVs and BEIs]
 
  Vapor Pressure
  1.5E-05 mm Hg
 
  Lethal Concentration
  LCLo (rat) = 700 mg/m3/4hr
 
  Explanatory Notes
  The Guide in the Emergency Response Guidebook is for "Organophosphorus pesticide, liquid, toxic."
 
  Neurotoxin
  Predominantly motor
 
  Other Poison
  Organophosphate
 
  Diseases
  
    Occupational diseases associated with exposure to this agent:
    
   
 
  Processes
  
    Industrial Processes with risk of exposure: