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Tetrachlorovinphos Quickview (CASRN 961-11-5)

Health assessment information on a chemical substance is included in IRIS only after a comprehensive review of toxicity data by U.S. EPA health scientists from several Program Offices, Regional Offices, and the Office of Research and Development.

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Status of Data for Tetrachlorovinphos

File First On-Line: 03/31/1987; Last Significant Revision: 03/31/1987

Category (section)
Last Revised
Oral RfD Assessment Yes 03/31/1987
Inhalation RfC Assessment No
Carcinogenicity Assessment No
  • 961-11-5
  • Benzyl alcohol, 2,4,5-trichloro-alpha-(chloromethylene)-, dimethyl phosphate
  • 2-Chloro-1-(2,4,5-trichlorophenyl)vinyl dimethyl phosphate
  • 2-Chloro-1-(2,4,5-trichlorophenyl)vinyl phosphoric acid dimethyl ester
  • IPO 8
  • NCI C00168
  • o,o-Dimethyl-o-2-chlor-1-(2,4,5-trichlorphenyl)-vinyl-phosphat
  • Phosphoric acid, 2-chloro-1-(2,4,5-trichlorophenyl)ethenyl dimethyl ester
  • Phosphoric acid, 2-chloro-1-(2,4,5-trichlorophenyl)vinyl dimethyl ester
  • Tetrachlorovinphos
  • Tetrachlorvinphos
  • 2,4,5-Trichloro-alpha-(chloromethylene)benzyl phosphate
Tetrachlorovinphos Source Documents
Chronic Health Hazard Assessments for Noncarcinogenic Effects

Reference Dose for Chronic Oral Exposure (RfD)

Critical Effect
Point of Departure*
Reduced body weight gain, increased liver and kidney weights, and RBC ChE inhibition NOEL : 3.13 mg/kg-day 100 3 x10-2 mg/kg-day

* The Point of Departure listed serves as a basis from which the Oral RfD was derived. See Discussion of Conversion Factors and Assumptions for more details.

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Reference Concentration for Chronic Inhalation Exposure (RfC)

Not Assessed under the IRIS Program.

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Carcinogenicity Assessment for Lifetime Exposure

Quantitative Estimate of Carcinogenic Risk from Oral Exposure

  • Not Assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure

  • Not Assessed under the IRIS Program.

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