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186562

Tetrahydrofuran

Name: Tetrahydrofuran
Brand: SIAL

≥99.9%, anhydrous, contains 250 ppm BHT as inhibitor

Synonym(s):

THF, Butylene oxide, Oxolane, Tetramethylene oxide

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About This Item

Linear Formula:

(CH₂)₃CH₂O

CAS Number:

109-99-9

Molecular Weight:

72.11

NACRES:

NA.21

PubChem Substance ID:

57647757

UNSPSC Code:

12191501

EC Number:

203-726-8

MDL number:

MFCD00005356

Beilstein/REAXYS Number:

102391

Assay:

≥99.9%

Grade:

anhydrous

Bp:

65-67 °C (lit.)

Vapor pressure:

114 mmHg ( 15 °C), 143 mmHg ( 20 °C)

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Properties

Product Name

Tetrahydrofuran, anhydrous, contains 250 ppm BHT as inhibitor, ≥99.9%

grade

anhydrous

Quality Segment

200

vapor density

2.5 (vs air)

vapor pressure

114 mmHg ( 15 °C), 143 mmHg ( 20 °C)

assay

≥99.9%

form

liquid

autoignition temp.

610 °F

contains

250 ppm BHT as inhibitor

expl. lim.

1.8-11.8 %

impurities

≤0.005% peroxides (as H₂O₂), <0.002% water (All units except 100 mL), <0.005% water (100 mL pkg)

refractive index

n20/D 1.407 (lit.)

pH

bp

65-67 °C (lit.)

mp

−108 °C (lit.)

solubility

H₂O: soluble

density

0.889 g/mL at 25 °C (lit.)

SMILES string

C1CCOC1

InChI

1S/C4H8O/c1-2-4-5-3-1/h1-4H2

InChI key

WYURNTSHIVDZCO-UHFFFAOYSA-N

Description

General description

Our anhydrous solvents deliver exceptionally low water content, making them the ideal choice for moisture-sensitive laboratory applications. Packaged in the exclusive Sure/Seal^™ septum bottle system, they are reliably protected against moisture ingress from first use to last drop. The innovative Sure/Seal^™ closurecombines an advanced plug-style liner with an airtight elastomer and crimp capdesign to ensure consistent product integrity. Three unique liner materialsprovide optimal chemical compatibility across a broad range of solvents. Sure/Seal^™ packaging is proven to maintain anhydrous conditions even after repeated punctures. With more than 70 products across all major solvent families, available in pack sizes from 100 mL to 2 L, the portfolio meets virtually every laboratory need. By choosing ready-to-use anhydrous solvents in Sure/Seal^™ packaging, researchers eliminate the need for time-consuming and hazardous in-house solvent drying and distillation - saving time, reducing risk, and improving reproducibility.

Application

Anhydrous solvents in Sure/Seal^™ packaging are essential wherever water contaminationwould compromise experimental results. They are widely used in moisture-sensitive applications such as organic synthesis - including Grignard reactions, organometallic chemistry, and catalysis - as well as in peptide,oligonucleotide, and pharmaceutical synthesis.

Packaging

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Other Notes

Greener alternatives are available for many THF applications, 2-Methyltetrahydrofuran (414247) and Cyclopentyl methyl ether (675970)

Legal Information

Sure/Seal is a trademark of Sigma-Aldrich Co. LLC

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Danger

target_organs

Central nervous system, Respiratory system

supp_hazards

EUH019

Storage Class

3 - Flammable liquids

flash_point_f

-6.2 °F - closed cup

flash_point_c

-21.2 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2 - Eye Dam. 1 - Flam. Liq. 2 - STOT SE 3

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