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Tetrahydrofuran

CAS NO. 109-99-9
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Product Name Tetrahydrofuran
CAS NO. 109-99-9
Molecular Formula C₄H₈O
Structural Formula
Molecular Weight 72.11 g/mol
Content ≥99.95%
Moisture ≤100 mg/kg
Color(Pt-Co) ≤10
Peroxidase ≤50 ppm
BHT Content 180-250 ppm
Application

Tetrahydrofuran is used for surface treatment of surface coating, protective coating, ink,

extractant and artificial leather. It is also the main solvent in pharmaceutical industry. It is widely used in resin solvent; Reaction solvent; Chromatographic solvent. Also tetrahydrofuran is used primarily (80%) to make polytetramethylene ether glycol, the base polymer used primarily in the manufacture of elastomeric fibers (e.g., spandex) as well as polyurethane and polyester elastomers (e.g., artificial leather, skateboard wheels).


Polymer Production

  • PTMEG Synthesis: >75% of THF polymerizes into polytetramethylene ether glycol for spandex fibers and PU elastomers

  • Spandex & PU Elastomers: Essential raw material for athletic apparel, artificial leather, and industrial parts

Coatings & Inks

  • Surface Coatings: Excellent solvency in nitrocellulose and PU coatings

  • Printing Inks: Provides smooth flow and rapid drying in ink formulations

Pharmaceutical Industry

  • API Synthesis & Extraction: Used in critical synthesis and purification steps

  • Crystallization: Facilitates high-quality crystal formation in drug manufacture



Tetrahydrofuran (THF), CAS 109-99-9
A cyclic ether solvent with ≥99.95% purity, ultra-low moisture (≤100 mg/kg), and controlled peroxide levels (≤50 ppm) stabilized by BHT (180–250 ppm) for enhanced safety and shelf life.

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