293105
Tetrahydropyran
anhydrous, 99%
Synonym(s):
Pentamethylene oxide
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About This Item
Empirical Formula (Hill Notation):
C5H10O
CAS Number:
Molecular Weight:
86.13
UNSPSC Code:
12352005
NACRES:
NA.21
PubChem Substance ID:
EC Number:
205-552-8
Beilstein/REAXYS Number:
102436
MDL number:
Assay:
99%
Grade:
anhydrous
Bp:
88 °C (lit.)
grade
anhydrous
Quality Segment
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.)
SMILES string
C1CCOCC1
InChI
1S/C5H10O/c1-2-4-6-5-3-1/h1-5H2
InChI key
DHXVGJBLRPWPCS-UHFFFAOYSA-N
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.
Application
Tetrahydropyran can be used as a solvent in various classical organic reactions such as radical reactions, palladium-catalyzed coupling, and Grignard reactions.
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signalword
Danger
hcodes
Hazard Classifications
Flam. Liq. 2
supp_hazards
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
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