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Pyridine Quickview (CASRN 110-86-1)

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 Pyridine

File First On-Line: 09/30/1987; Last Significant Revision: 09/30/1987

Category (section)
Status
Last Revised
Oral RfD Assessment On-line 06/01/1989
Inhalation RfC Assessment No data
Carcinogenicity Assessment No data
Synonyms
  • Azabenzene
  • Azine
  • 110-86-1
  • NCI-C55301
  • Piridina
  • Pirydyna
  • Pyridin
  • Pyridine
  • RCRA Waste Number U196
  • Tritisan
Pyridine Source Documents
Revision History
Date Section Description
08/01/1995 I.A.6. EPA's RfD/RfC and CRAVE workgroups were discontinued in May, 1995. Chemical substance reviews that were not completed by September 1995 were taken out of IRIS review. The IRIS Pilot Program replaced the workgroup functions beginning in September, 1995.
Chronic Health Hazard Assessments for Noncarcinogenic Effects

Reference Dose for Chronic Oral Exposure (RfD)

Critical Effect
Point of Departure*
UF RfD
Increased liver weight NOAEL : 1.0 mg/kg-day 1000 1 x10-3 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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