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Molekula

Molekula

Tetrahydrofuran

SKU 90018875 CAS 109-99-9 C4H8O MW 72.11 In stock (5+ packs) — same-day dispatch Bulk quantities on request

Supplying 4,500+ customers in over 80 countries

ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need

Tetrahydrofuran (THF) is a colorless, water-miscible organic solvent widely used in laboratories for extraction, polymerization, and as a reaction medium. It’s also a key industrial solvent in adhesives, coatings, and pharmaceutical manufacturing. THF has a CAS number of 109-99-9, a molecular formula of C4H8O, and a molecular weight of 72.11 g/mol. It is stored at ambient conditions but requires careful handling due to its flammability and toxicity, carrying a **Danger** signal word. Molekula supplies Tetrahydrofuran from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Expect a response within hours Speak to a chemist: +44 (0) 3302 000333

Example image for illustration only. Other packaging and pack sizes are available.

Pricing & pack sizes

Pack sizes & pricing

In stock — same-day dispatch

These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.

Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.

  • 1 L — $58.70 per pack
  • 500 mL — $55.10 per pack

Need a different quantity or pack?

Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.

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Specifications

Property Value
Appearance Clear colourless liquid
Refractive Index 1.4055 - 1.4085
Water ≤ 0.05%
Identification Conforms to reference
Colour ≤10 APHA
Assay (GC) ≥ 98.5%
Peroxide (as THF hydroperoxyde) ≤ 0.005%
Stablizer (BHT) ≥200ppm - ≤300ppm

Storage & handling

Property Value
Storage Temperature Ambient
Flash Point -21 °C
Transport Class 3
Packing Group II
Acidity Neutral

Literature values

Published physical properties of the substance, not batch specifications.

Property Value
Appearance Colorless, mobile liquid
Odour Ether-like odor
Melting Point -108.44 °C
Boiling Point 65 °C
Density 0.89 (relative, water = 1)
Solubility (other solvents) Very soluble in acetone, benzene, ether, ethanol, and chloroform
Vapour Pressure 19.3 kPa at 20 °C
Refractive Index 1.4050
pKa pKa = -2.08
log P (octanol/water) 0.46

Source: PubChem CID 8028 (HSDB, ICSC)

Identification

Property Value
SKU 90018875
CAS Number 109-99-9
IUPAC Name oxolane
EC Number 203-726-8
Molecular Formula C4H8O
Molecular Weight 72.11
Exact Mass 72.0575
SMILES C1CCOC1
InChIKey WYURNTSHIVDZCO-UHFFFAOYSA-N
InChI InChI=1S/C4H8O/c1-2-4-5-3-1/h1-4H2
PubChem CID 8028
UN Number UN2056
REACH Code Y110
TSCA Listed Yes
HTS Code 2932.13.0000
Tariff Code 2932130090

Safety & GHS

Danger
  • GHS pictogram — Flammable Flammable GHS02
  • GHS pictogram — Health Hazard Health Hazard GHS07
  • GHS pictogram — Serious Health Hazard Serious Health Hazard GHS08

Hazard statements

  • EUH019 May form explosive peroxides
  • H225 Highly flammable liquid and vapour
  • H302 Harmful if swallowed
  • H319 Causes serious eye irritation
  • H335 May cause respiratory irritation
  • H336 May cause drowsiness or dizziness
  • H351 Suspected of causing cancer

Precautionary statements

  • P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
  • P260 Do not breathe dust/fume/gas/mist/vapours/spray
  • P280 Wear protective gloves/protective clothing/eye protection/face protection
  • P301+P330+P331 IF SWALLOWED: Rinse mouth. Do NOT induce vomiting
  • P304+P340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
  • P305+P351+P338 IF IN EYES: Rinse continuously with water for several minutes. Remove contact lenses if present and easy to do, continue rinsing

Documents

Safety Data Sheets (SDS)

Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Quality certificates

Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.

Synonyms

  • 1,4-Epoxybutane
  • Furan, tetrahydro-
  • Furanidine
  • Hydrofuran
  • Oxacyclopentane
  • Oxolane
  • Tetrahydrofuraan
  • Tetrahydrofuranne
  • Tetraidrofurano
  • Tetramethylene oxide

Frequently asked questions

What is tetrahydrofuran (THF) commonly used for?

Tetrahydrofuran is widely used as a solvent in laboratories and industrial processes, including polymer production, chemical synthesis, and as a reaction medium for lithium aluminum hydride reductions.

What is the chemical formula and molecular weight of tetrahydrofuran?

The chemical formula is **C₄H₈O**, and the molecular weight is **72.11 g/mol**.

How should tetrahydrofuran be stored?

Store tetrahydrofuran in a tightly sealed container at **ambient temperature**, away from ignition sources and oxidizing agents.

What grades of tetrahydrofuran does Molekula supply?

Molekula supplies **ACS reagent grade** and **high-purity (HPLC grade) tetrahydrofuran**—contact us for specific purity requirements.

Can Molekula supply tetrahydrofuran in bulk quantities?

Yes, we offer tetrahydrofuran in bulk (drums, IBCs, or tanker loads) for industrial and large-scale applications—inquire for pricing and lead times.

What documentation comes with a tetrahydrofuran order?

Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.

Ready to order or need a custom pack?

Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.

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