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Tetrahydropyran Structure

Tetrahydropyran

Chemical Properties

Melting point -45 °C (lit.)
Boiling point 88 °C (lit.)
Density  0.881 g/mL at 25 °C (lit.)
vapor density  3 (vs air)
refractive index  n20/D 1.42(lit.)
Flash point 4 °F
storage temp.  Store below +30°C.
solubility  >80.2g/l
form  Liquid
color  Clear colorless
Odor at 0.10?%?in?dipropylene glycol. pungent sweet ethereal
Water Solubility  80 g/L (25 ºC)
Merck  14,9217
BRN  102436
Dielectric constant 7.3（30℃）
InChIKey DHXVGJBLRPWPCS-UHFFFAOYSA-N
LogP 0.950
CAS DataBase Reference 142-68-7(CAS DataBase Reference)
FDA UNII V06I3ILG6B
NIST Chemistry Reference 2H-Pyran, tetrahydro-(142-68-7)
EPA Substance Registry System Tetrahydropyran (142-68-7)
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Safety

Symbol(GHS) GHS hazard pictograms
Signal wordDanger
Hazard statements H225
Precautionary statements P210-P233-P240-P241-P242-P243
Hazard Codes  F,Xi,Xn
Risk Statements  11-36/37/38-9-19-52/53-22
Safety Statements  9-16-26-33-36-61
RIDADR  UN 1993 3/PG 2
WGK Germany  3
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29321100
Hazardous Substances Data 142-68-7(Hazardous Substances Data)
NFPA 704:
3
1

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