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Solvents - Oxygenated Available — Bulk Only

Tetrahydrofuran (THF)

THF
CAS 109-99-9 · Formula C4H8O · MW 72.11 g/mol

A powerful aprotic ether solvent for polymers, coatings, and organometallic synthesis. it is used as a solvent for high polymers (especially PVC), in printing inks, adhesives, lacquers, and coatings, as a reaction medium for Grignard and metal-hydride reactions, and as a chemical intermediate.

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UN Number
UN 2056
Hazard Class
Class 3
HS Code
2932.11
At a Glance
Material Family
Solvents - Oxygenated
Record Type
Pure compound
Primary Role
Solvency · Synthesis Intermediate
Solubility
≥ 100 mg/mL at 20 °C
Functional Roles
Solvency Synthesis Intermediate
Industries Served
Coatings & Construction HI&I Cleaning Industrial Manufacturing Plastics & Polymers Water Treatment
Applications & Use Cases
  • ▸ Polymer solvent: Dissolves PVC and other high polymers and resins.
  • ▸ Coatings and adhesives: Solvent in inks, lacquers, adhesives, and topcoats.
  • ▸ Reaction medium: Solvent for Grignard and metal-hydride reactions.
  • ▸ Chemical intermediate: Feedstock in organic synthesis.
Physical Properties
Melting Point
-108 °C
Boiling Point
66 °C at 760 mmHg
Density
0.888 at 20 °C
Solubility
≥ 100 mg/mL at 20 °C
Vapor Pressure
114 mmHg at 15 °C; 145 mmHg at 20 °C
Flash Point
-14 °C
Safety & Handling
Full SDS available on request

A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.

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DOT / UN Transport Classification
DOT hazard class 3 placard
UN / DOT NumberUN 2056
Hazard Class / DivisionClass 3
Packing GroupII
Proper Shipping NameTetrahydrofuran

Transport classification per the UN Model Regulations / 49 CFR 172.101 Hazardous Materials Table. Confirm against the grade-specific SDS (Section 14) before shipping.

HS / Tariff Classification
Harmonized System (HS) Code — 6-digit international heading
2932 . 11
Chapter 29
Organic chemicals
Heading 29.32
Internationally harmonized (WCO HS)
Subheading 2932.11
6-digit international code — national tariff line adds further digits
Chemical Identity
CAS Number
109-99-9
Molecular Formula
C4H8O
Molecular Weight
72.11 g/mol
IUPAC Name
oxolane
PubChem CID
8028
InChI Key
WYURNTSHIVDZCO-UHFFFAOYSA-N
Synonyms & Trade Names
TETRAHYDROFURAN Oxolane Furanidine Furan, tetrahydro- Tetramethylene oxide Hydrofuran Oxacyclopentane 1,4-Epoxybutane Tetrahydrofuranne Tetraidrofurano Tetrahydrofuraan Cyclotetramethylene oxide Agrisynth THF Butane, 1,4-epoxy- RCRA waste number U213 Butane, alpha,delta-oxide NCI-C60560 Butane alpha,delta-oxide
Full Description

Tetrahydrofuran (CAS 109-99-9) is a cyclic ether (C4H8O) and a strong aprotic solvent. it is used as a solvent for high polymers (especially PVC), in printing inks, adhesives, lacquers, and coatings, as a reaction medium for Grignard and metal-hydride reactions, and as a chemical intermediate.

Frequently Asked Questions

What is tetrahydrofuran (THF) used for?

THF (CAS 109-99-9) is a strong aprotic cyclic-ether solvent used to dissolve high polymers, especially PVC, in printing inks, adhesives, lacquers, and coatings, as a reaction medium for Grignard and metal-hydride reactions, and as a chemical intermediate.

What is the difference between ACS grade and reagent grade?

ACS grade meets the purity specifications set by the American Chemical Society and is the standard high-purity grade for analytical and research work. Reagent grade also denotes high purity suitable for laboratory use; ACS reagent grade indicates the material meets ACS-defined limits for assay and impurities.

Where can I buy THF solvent?

RawSource supplies tetrahydrofuran in bulk industrial and reagent ACS grades to manufacturers and laboratories. Request a bulk quote with your target grade, packaging, and volume; CoA and SDS are available on request.

How does THF ship under DOT?

THF is assigned UN 2056 (TETRAHYDROFURAN), a flammable liquid. Confirm the packing group, packaging, and documentation against the current SDS before shipping.

What is the cost of bulk THF?

Bulk THF pricing depends on grade, packaging, and volume. Request a quote from RawSource with your target quantity for current pricing and lead time.

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Disclaimer. Information on this page — including properties, identifiers, hazard, transport (DOT/UN) and tariff (HS) classifications, and applications — is provided for general reference and is compiled from authoritative public sources (e.g. PubChem/ECHA, 49 CFR 172.101, the Harmonized Tariff Schedule). Values are typical and are not a guaranteed specification; the Certificate of Analysis (CoA) for the lot purchased governs. Products are sold for industrial and professional use only. Nothing here is a medical, health, or efficacy claim or advice. Always consult the current Safety Data Sheet (SDS) before handling, storage, transport or disposal, and confirm regulatory status, classification and suitability for your application and jurisdiction. Hazard, transport and tariff classifications must be verified for your specific shipment. RawSource makes no warranty, express or implied, and assumes no liability for use of this information. Trademarks. Third-party trademarks and brand names are the property of their respective owners; any reference is nominative — used only to identify a comparable product — and does not imply affiliation with, sponsorship by, or endorsement by the trademark owner.
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