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Urea Quickview (CASRN 57-13-6)

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.

Disclaimer: This QuickView represents a snapshot of key information. We suggest that you read the IRIS Summary to put this information into complete context.

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Status of Data for Urea

File First On-Line: 07/13/2011; Last Significant Revision: 07/13/2011

Category (section)
Status
Last Revised
Oral RfD Assessment Discussion 07/13/2011
Inhalation RfC Assessment Discussion 07/13/2011
Carcinogenicity Assessment On-line 07/13/2011
Synonyms
  • Carbamide
  • Aquacare
  • Aquadrate
  • Basodexan
  • Carbonyldiamide
  • Hyanit
  • Keratinamin
  • Nutraplus
  • Onychomal
  • Pastaron
  • Ureaphil
  • more...
Urea Source Documents
Revision History
Date Section Description
07/13/2011 I., II., VI. RfD and RfC discussion added cancer assessment added.
Chronic Health Hazard Assessments for Noncarcinogenic Effects

Reference Dose for Chronic Oral Exposure (RfD)

Information reviewed but value not estimated. See IRIS Summary.

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Reference Concentration for Chronic Inhalation Exposure (RfC)

Information reviewed but value not estimated. See IRIS Summary.

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Carcinogenicity Assessment for Lifetime Exposure
  • Weight-of-Evidence Characterization
    • Inadequate information to assess carcinogenic potential
  • Weight-of-Evidence Narrative:
    • Under the Guidelines for Carcinogen Risk Assessment (U.S. EPA, 2005a), there is "inadequate information to assess the carcinogenic potential" of urea.
    • This may be a synopsis of the full weight-of-evidence narrative. See IRIS Summary.

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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