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Merck

186562

Tetrahydrofuran

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

동의어(들):

THF, Butylene oxide, Oxolane, Tetramethylene oxide

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제품정보 (DICE 배송 시 비용 별도)

실험식(Hill 표기법):
C4H8O
CAS 번호:
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)

주요 문서

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제품 이름

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

grade

anhydrous

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

~7

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

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관련 카테고리

General description

Tetrahydrofuran (THF) is a saturated cyclic ether mainly used as an organic solvent. On long term storage it forms organic peroxides. This process can be suppressed by adding butylated hydroxytoluene (BHT) as a stabilizer. BHT removes the free radicals required for the peroxide formation. It constitutes the key fragment of various natural products (polyether antibiotics). THF forms double hydrate with hydrogen sulfide, crystal structure of this double hydrate has been investigated by three-dimensional single-crystal studies.

Application

Dry tetrahydrofuran (THF) has been used in the synthesis of dichloro{bis[1,1′,1′′-(phosphinetriyl)tripiperidine]}palladium [(P(NC5H10)3)2Pd(Cl)2], which is widely used in the Heck reaction as a catalyst. It has been employed in the reaction medium of the Heck cross-coupling reaction of various aryl bromides and olefins.

Packaging

View returnable container options.

Other Notes

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

signalword

Danger

target_organs

Central nervous system, Respiratory system

supp_hazards

EUH019

저장 등급

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

가장 최신 버전 중 하나를 선택하세요:

시험 성적서(COA)

Lot/Batch Number
SHBT6404
SHBT5257
SHBT4315
SHBT3442
SHBT2776

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특정 버전이 필요한 경우 로트 번호나 배치 번호로 특정 인증서를 찾을 수 있습니다.

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Mizoroki-Heck Cross-coupling Reactions Catalyzed by Dichloro {bis [1, 1', 1''-(phosphinetriyl) tripiperidine]} palladium Under Mild Reaction Conditions.
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