2-Methyl-4-chlorophenoxyacetic acid (MCPA)

CASRN 94-74-6

Health Hazard Assessments for Effects Other than Cancer


Reference Dose for Oral Exposure (RfD) (PDF) (9 pp, 97 K) last updated: 08/28/1987

RfD (mg/kg-day) System Basis PoD Composite UF Confidence
5 x10-4 Hepatic, Urinary Kidney and liver toxicity NOEL : 1.5 x10-1
mg/kg-day 		300 Medium

Reference Concentration for Inhalation Exposure (RfC) (PDF) (9 pp, 97 K)
Not assessed under the IRIS Program.

Cancer Assessment


Weight of Evidence for Cancer (PDF) (9 pp, 97 K)
Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (9 pp, 97 K)

Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (9 pp, 97 K)

Not assessed under the IRIS Program.

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Critical Effect Systems

Hepatic
Hepatic
Urinary
Urinary
 

Chemical Structure for
2-Methyl-4-chlorophenoxyacetic acid (MCPA)

2-Methyl-4-chlorophenoxyacetic acid (MCPA)

Synonyms

  • ((4-Chloro-o-tolyl)oxy)acetic acid
  • (4-Chloro-2-methylphenoxy)-acetic acid
  • 2,4-MCPA
  • 2-Methyl-4-chlorphenoxyessigsaeure
  • 2M-4CH

    • more synonyms