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Tetrahydrofuran

CASRN 109-99-9 | DTXSID1021328

  • Toxicological Review (PDF) (207 pp, 1.22 M)
  • IRIS Summary (PDF) (26 pp, 242 K)

On this page:

  • Key IRIS
    Values
  • Chemical
    Documents
  • Other EPA
    Information

Noncancer Assessment

Reference Dose for Oral Exposure (RfD) (PDF) (26 pp, 242 K) Last Updated: 02/21/2012

System RfD (mg/kg-day) Basis PoD Composite UF Confidence
Developmental 9 x 10 -1 Decreased pup body weight gain BMDL 1SD : 928
mg/kg-day
1000 Low/Medium

Reference Concentration for Inhalation Exposure (RfC) (PDF) (26 pp, 242 K) Last Updated: 02/21/2012

System RfC (mg/m3) Basis PoD Composite UF Confidence
Nervous, Hepatic 2 Increased liver weight and centrilobular cytomegaly, CNS effects (narcosis) BMCL 10 : 246.0
mg/m3
100 Medium/High

Cancer Assessment

Weight of Evidence for Cancer (PDF) (26 pp, 242 K) Last Updated: 02/21/2012

WOE Characterization Framework for WOE Characterization
Suggestive evidence of carcinogenic potential Guidelines for Carcinogen Risk Assessment (U.S. EPA, 2005)
Basis:
  • Under EPA’s Guidelines for Carcinogen Risk Assessment (U.S. EPA, 2005a), the database for THF provides "suggestive evidence of carcinogenic potential."
  • This may be a synopsis of the full weight-of-evidence narrative.

Quantitative Estimate of Carcinogenic Risk from Oral Exposure (PDF) (26 pp, 242 K)

Not assessed under the IRIS Program.

Quantitative Estimate of Carcinogenic Risk from Inhalation Exposure (PDF) (26 pp, 242 K)

Not assessed under the IRIS Program.

Chemical Documents

Feb 2012: IRIS Toxicological Review of Tetrahydrofuran (THF) (Final Report) (Report)

Sep 2011: IRIS Toxicological Review of Tetrahydrofuran (THF) (Interagency Science Discussion Draft) (Report)

Aug 2007: IRIS Toxicological Review of Tetrahydrofuran (THF) (External Review Draft) (Report)

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 - Tetrahydrofuran
  • eChemPortal - Tetrahydrofuran

Critical Effects

Developmental
Developmental

Hepatic
Hepatic

Nervous
Nervous

Chemical Structure

Tetrahydrofuran

Synonyms

  • THF
  • Tetrahydrofuran
  • diethyleneoxide
  • furanidine
  • oxacyclopentane
  • tetramethyleneoxide
  • 1,4-epoxy butane
  • 109-99-9
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