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4-Cyano-4'-pentylbiphenyl

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4-Cyano-4'-pentylbiphenyl Basic information

Product Name:
4-Cyano-4'-pentylbiphenyl
Synonyms:
  • 4’-pentyl-biphenyl-4-carbonitrile
  • 4-Pentyl-4’-cyanobipheny
  • 4'-PENTYL-4-BIPHENYLCARBONITRILE 99+%
  • 4-N-Pentyl-Biphenylcarbonitrile
  • 4-Pentyl-4'-Cyanobiphenyl,5CbC18H15N
  • 4-n-Amyl-4'-cyanobiphenyl
  • 4'-n-Pentyl-(1,1'-biphenyl)-4-carbonitrile
  • p-n-Amylbenzylidene-p'-cyanoaniline
CAS:
40817-08-1
MF:
C18H19N
MW:
249.35
EINECS:
255-093-2
Product Categories:
  • Liquid Crystals
  • Nematic
  • Biphenyl & Diphenyl ether
  • Biphenyls (Building Blocks for Liquid Crystals)
  • Building Blocks for Liquid Crystals
  • Organic Electronics and Photonics
  • Cyanobiphenyls & Analogs (Liquid Crystals)
  • Functional Materials
  • Liquid Crystals & Related Compounds
Mol File:
40817-08-1.mol
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4-Cyano-4'-pentylbiphenyl Chemical Properties

Melting point:
34 °C
Boiling point:
140-150 °C0.5 mm Hg(lit.)
Density 
1.008 g/mL at 25 °C(lit.)
refractive index 
n20/D 1.532(lit.)
Flash point:
>230 °F
storage temp. 
Sealed in dry,Room Temperature
solubility 
Chloroform (Slightly), Methanol (Slightly)
form 
liquid crystal (nematic)
color 
Off-White
Water Solubility 
insoluble
InChIKey
HHPCNRKYVYWYAU-UHFFFAOYSA-N
CAS DataBase Reference
40817-08-1(CAS DataBase Reference)
NIST Chemistry Reference
[1,1'-Biphenyl]-4-carbonitrile, 4'-pentyl-(40817-08-1)
EPA Substance Registry System
[1,1'-Biphenyl]-4-carbonitrile, 4'-pentyl- (40817-08-1)
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Safety Information

Hazard Codes 
Xn
Risk Statements 
20/21/22-36/37/38
Safety Statements 
23-26-28-36-36/37/39
RIDADR 
3276
WGK Germany 
3
TSCA 
Yes
HazardClass 
6.1
PackingGroup 
III
HS Code 
29269090

MSDS

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4-Cyano-4'-pentylbiphenyl Usage And Synthesis

Chemical Properties

white to light yellow crysta

Uses

4-Cyano-4'-n-pentylbiphenyl is used in the preparation of 4'-pentylbiphenyl-4-carboxylic acid by acidic hydrolysis using sulfuric acid as a reagent.

Uses

Intermediates of Liquid Crystals

General Description

4′-Pentyl-4-biphenylcarbonitrile (5CB) is a nematic liquid crystal. 5CB undergoes phase transition from crystalline to nematic then to isotropic state at 18oC and 35oC respectively. It may be produced by modifying biphenyl.2

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