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Merck
CN

293105

Tetrahydropyran

anhydrous, 99%

Synonym(s):

Pentamethylene oxide

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About This Item

Empirical Formula (Hill Notation):
C5H10O
CAS Number:
142-68-7
Molecular Weight:
86.13
UNSPSC Code:
12352005
NACRES:
NA.21
PubChem Substance ID:
57648359
EC Number:
205-552-8
Beilstein/REAXYS Number:
102436
MDL number:
MFCD00006585
Grade:
anhydrous
Assay:
99%
Bp:
88 °C (lit.)

Key Documents

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Product Name

Tetrahydropyran, anhydrous, 99%

InChI key

DHXVGJBLRPWPCS-UHFFFAOYSA-N

InChI

1S/C5H10O/c1-2-4-6-5-3-1/h1-5H2

SMILES string

C1CCOCC1

grade

anhydrous

vapor density

3 (vs air)

assay

99%

form

liquid

impurities

<0.003% water
<0.005% water (100 mL pkg)

evapn. residue

<0.0003%

refractive index

n20/D 1.42 (lit.)

bp

88 °C (lit.)

mp

−45 °C (lit.)

density

0.881 g/mL at 25 °C (lit.)

Quality Level

100

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Application

Tetrahydropyran can be used as a solvent in various classical organic reactions such as radical reactions, palladium-catalyzed coupling, and Grignard reactions.

General description

Tetrahydropyran (THP) is a saturated cyclic ether. It is commonly used as a solvent in organic synthesis because of its strong hydrophobicity and low vaporization temperature, which enable easy recovery and reuse of the solvent. This makes the entire synthetic process more environmentally friendly.

pictograms

Flame
GHS02

signalword

Danger

hcodes

H225

Hazard Classifications

Flam. Liq. 2

supp_hazards

EUH019

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

3.2 °F - closed cup

flash_point_c

-16 °C - closed cup

ppe

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

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
SHBP7491
SHBJ6605
SHBJ8467
SHBH9980
SHBF5064V

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Phase behaviour of gas hydrates of carbon dioxide in the presence of tetrahydropyran, cyclobutanone, cyclohexane and methylcyclohexane.
Mooijer-Van DH, et al.
Fluid Phase Equilibria, 182(1), 97-110 (2001)
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