2,4-/2,6-Toluene diisocyanate mixture (TDI)

CASRN 26471-62-5

  • IRIS Summary (PDF) (25 pp, 172 K)
  • Status: 2,4-/2,6-Toluene diisocyanate mixture (TDI) is not being reassessed by IRIS at this time.

Health Hazard Assessments for Effects Other than Cancer


Reference Dose for Oral Exposure (RfD) (PDF) (25 pp, 172 K)
Not assessed under the IRIS Program.

Reference Concentration for Inhalation Exposure (RfC) (PDF) (25 pp, 172 K) last updated: 09/01/1995

RfC (mg/m3) System Basis PoD Composite UF Confidence
7 x10-5 Respiratory Chronic lung-function decline NOAEL (HEC): 2 x10-3
mg/m3
30 Medium

Cancer Assessment


Weight of Evidence for Cancer (PDF) (25 pp, 172 K)
Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (25 pp, 172 K)

Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (25 pp, 172 K)

Not assessed under the IRIS Program.

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