Isopropyl methyl phosphonic acid (IMPA)

CASRN 1832-54-8

  • IRIS Summary (PDF) (12 pp, 118 K)
  • Status: Isopropyl methyl phosphonic acid (IMPA) is not being reassessed by IRIS at this time.

Health Hazard Assessments for Effects Other than Cancer


Reference Dose for Oral Exposure (RfD) (PDF) (12 pp, 118 K) last updated: 06/01/1992

RfD (mg/kg-day) System Basis PoD Composite UF Confidence
1 x 10-1 None No adverse effects observed NOAEL : 2.79 x 102
mg/kg-day
3000 Low

Reference Concentration for Inhalation Exposure (RfC) (PDF) (12 pp, 118 K)
Not assessed under the IRIS Program.

Cancer Assessment


Weight of Evidence for Cancer (PDF) (12 pp, 118 K) last updated: 03/01/1991

WOE Characterization Framework for WOE Characterization
D (Not classifiable as to human carcinogenicity) Guidelines for Carcinogen Risk Assessment (US EPA, 1986)
Basis:
  • Based on no data in humans and animals.
  • This may be a synopsis of the full weight-of-evidence narrative.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (12 pp, 118 K)

Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (12 pp, 118 K)

Not assessed under the IRIS Program.

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