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2,4-/2,6-Toluene diisocyanate mixture (TDI) Quickview (CASRN 26471-62-5)

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Status of Data for 2,4-/2,6-Toluene diisocyanate mixture (TDI)

File First On-Line: 09/01/1995; Last Significant Revision: 09/01/1995

Category (section)
Last Revised
Oral RfD Assessment No
Inhalation RfC Assessment Yes 09/01/1995
Carcinogenicity Assessment No
  • 26471-62-5
  • 584-84-9
  • 91-08-7
  • 1,3-Diisocyanato-2-methylbenzene
  • 2,4-Diisocyanato-1-methylbenzene
  • 2,4-Diisocyanatotoluene
  • 2,4-TDI
  • 2,4-Toluene diisocyanate
  • 2,4-Toluylene diisocyanate
  • 2,4-Tolylene diisocyanate
  • 2,6-Diisocyanato-1-methylbenzene
  • more...
2,4-/2,6-Toluene diisocyanate mixture (TDI) Source Documents
Chronic Health Hazard Assessments for Noncarcinogenic Effects

Reference Dose for Chronic Oral Exposure (RfD)

Not Assessed under the IRIS Program.

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Reference Concentration for Chronic Inhalation Exposure (RfC)

Critical Effect
Point of Departure*
Chronic lung-function decline NOAEL (HEC): 2 x10-3 mg/m3 30 7x10-5 mg/m3

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

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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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