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Chlorsulfuron Quickview (CASRN 64902-72-3)

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 Chlorsulfuron

File First On-Line: 01/31/1987; Last Significant Revision: 01/31/1987

Category (section)
Last Revised
Oral RfD Assessment Yes 01/31/1987
Inhalation RfC Assessment No
Carcinogenicity Assessment No
  • 64902-72-3
  • Benzenesulfonamide, 2-chloro-N-(((4-methoxy-6-methyl-1,3,5-triazin-2-yl)amino)carbonyl)-
  • 2-Chloro-N-((4-methoxy-6-methyl-1,3,5-triazin-2-yl)aminocarbonyl)-benzene sulfonamide
  • 1-((o-Chlorophenyl)sulfonyl)-3-(4-methoxy-6-methyl-s-triazin-2-yl)urea
  • Chlorsulfon
  • Chlorsulfuron
  • DPX 4189
  • Glean
  • Urea, 1-((o-chlorophenyl)sulfonyl)-3-(4-methoxy-6-methyl-s-triazin-2-yl)-
Chlorsulfuron Source Documents
Chronic Health Hazard Assessments for Noncarcinogenic Effects

Reference Dose for Chronic Oral Exposure (RfD)

Critical Effect
Point of Departure*
Decreased body weight NOEL : 5 mg/kg-day 100 5 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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