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Warfarin

CASRN 81-81-2 | DTXSID5023742

  • IRIS Summary (PDF) (9 pp, 98 K)
  • Status: EPA announced in a 2004 Federal Register Notice that chemicals used as pesticides would not be re-assessed by the IRIS Program. This entry in the IRIS database is preserved at the request of EPA program and regional offices. Additional toxicological information may be found under "Other EPA Information."

On this page:

  • IRIS Toxicity
    Values
  • Other EPA
    Information

Noncancer Assessment

Reference Dose for Oral Exposure (RfD) (PDF) (9 pp, 98 K) Last Updated: 03/31/1987

System RfD (mg/kg-day) Basis PoD Composite UF Confidence
Hematologic 3 x 10 -4 Increased prothrombin time LOAEL : 2.9 x 10-2
mg/kg-day
100 Low

Reference Concentration for Inhalation Exposure (RfC) (PDF) (9 pp, 98 K)

Not assessed under the IRIS Program.

Cancer Assessment

Weight of Evidence for Cancer (PDF) (9 pp, 98 K)
Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (9 pp, 98 K)

Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (9 pp, 98 K)

Not assessed under the IRIS Program.

Other EPA Information

Additional EPA toxicity information may be available by visiting the following sites:
  • Human Health Benchmarks for Pesticides (HHBP). This database provides human health benchmarks for pesticides that may be present in drinking water.
  • Office of Pesticide Programs Pesticide Chemical Search. This database provides links to health effects information and registration status for pesticides.
  • Chemistry Dashboard. This database provides information on chemical structures, experimental and predicted physicochemical, and toxicity data.

Related Links

  • EPA Chemicals Dashboard - Warfarin
  • eChemPortal - Warfarin

Critical Effects

Hematologic
Hematologic

Chemical Structure

Warfarin

Synonyms

  • Arab Rat Deth
  • Athrombin-k
  • Athrombine-k
  • Brumolin
  • Co-Rax
  • Compound 42
  • Coumadin
  • Coumafen
  • Coumafene
  • Coumarin, 3-(alpha-acetonylbenzyl)-4-hydroxy-
  • Coumefene
  • Cov-R-Tox
  • D-Con
  • Dethmor
  • Dethnel
  • Eastern States Duocide
  • Fasco Fascrat Powder
  • Kumader
  • Kumadu
  • Kypfarin
  • Liqua-tox
  • Mar-Frin
  • Martin's Mar-Frin
  • Maveran
  • Mouse Pak
  • Prothromadin
  • RCRA Waste Number p001
  • Rat-A-Way
  • Rat-B-Gon
  • Rat-Gard
  • Rat-Kill
  • Rat-Mix
  • Rat-O-Cide #2
  • Rat-Ola
  • Rat-Trol
  • Ratorex
  • Ratox
  • Ratoxin
  • Ratron
  • Ratron g
  • Rats-No-More
  • Rattunal
  • Rax
  • Ro-Deth
  • Rodafarin
  • Rodex
  • Rodex Blox
  • Rosex
  • Rough and Ready Mouse Mix
  • Solfarin
  • Spray-Trol Brand Roden-Trol
  • Temus W
  • Tox-Hid
  • Twin Light Rat Away
  • Vampirinip II
  • Vampirinip III
  • W.A.R.F. 42
  • Waran
  • Warf Compound 42
  • Warfarat
  • Warfarin
  • Warfarin Plus
  • Warfarin q
  • Warfarine
  • Warficide
  • Zoocoumarin
  • (Phenyl-1 acetyl-2 ethyl) 3-hydroxy-4 coumarine
  • 1-(4'-Hydroxy-3'-coumarinyl)-1-phenyl-3-butanone
  • 2h-1-Benzopyran-2-one, 4-hydroxy-3-(3-oxo-1-phenylbutyl)-
  • 3-(1'-Phenyl-2'-acetylethyl)-4-hydroxycoumarin
  • 3-(Acetonylbenzyl)-4-hydroxycoumarin
  • 3-(alpha-Acetonylbenzyl)-4-hydroxycoumarin
  • 3-(alpha-Phenyl-beta-acetylaethyl)-4-hydroxycumarin
  • 3-(alpha-Phenyl-beta-acetylethyl)-4-hydroxycoumarin
  • 4-Hydroxy-3-(3-oxo-1-fenyl-butyl) cumarine
  • 4-Hydroxy-3-(3-oxo-1-phenyl-butyl)-cumarin
  • 4-Hydroxy-3-(3-oxo-1-phenylbutyl)-2h-1-benzopyran-2-one
  • 4-Idrossi-3-(3-oxo-)-fenil-butil)-cumarine
  • 81-81-2
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