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Sigma-Aldrich

4′-Pentyl-4-biphenylcarbonitrile

liquid crystal (nematic), 98%

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Synonym(s):
4-Cyano-4-pentylbiphenyl, 4-Pentyl-4-cyanobiphenyl, 5CB
Linear Formula:
CH3(CH2)4C6H4C6H4CN
CAS Number:
Molecular Weight:
249.35
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

Assay

98%

form

liquid crystal (nematic)

refractive index

n20/D 1.532 (lit.)

bp

140-150 °C/0.5 mmHg (lit.)

density

1.008 g/mL at 25 °C (lit.)

SMILES string

CCCCCc1ccc(cc1)-c2ccc(cc2)C#N

InChI

1S/C18H19N/c1-2-3-4-5-15-6-10-17(11-7-15)18-12-8-16(14-19)9-13-18/h6-13H,2-5H2,1H3

InChI key

HHPCNRKYVYWYAU-UHFFFAOYSA-N

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1 of 4

This Item
49152772205716582
form

liquid crystal (nematic)

form

-

form

powder

form

-

refractive index

n20/D 1.532 (lit.)

refractive index

n20/D 1.5549 (lit.)

refractive index

-

refractive index

-

bp

140-150 °C/0.5 mmHg (lit.)

bp

232 °C (lit.)

bp

-

bp

-

density

1.008 g/mL at 25 °C (lit.)

density

1.192 g/mL at 25 °C

density

-

density

-

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

100

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

Application

Attaching 5CB to an aqueous-liquid crystal interface by redox active surfactant has been investigated.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Skin Sens. 1

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Jin Pan et al.
Nanomaterials (Basel, Switzerland), 8(6) (2018-06-13)
Resistive pressure sensors generally employ microstructures such as pores and pyramids in the active layer or on the electrodes to reduce the Young’s modulus and improve the sensitivity. However, such pressure sensors always exhibit complex fabrication process and have difficulties
Makiko T Quint et al.
Scientific reports, 7(1), 17788-17788 (2017-12-21)
We present three-dimensional microshells formed by self-assembly of densely-packed 5 nm gold nanoparticles (AuNPs). Surface functionalization of the AuNPs with custom-designed mesogenic molecules drives the formation of a stable and rigid shell wall, and these unique structures allow encapsulation of cargo
Palash Dhara et al.
Scientific reports, 8(1), 7169-7169 (2018-05-10)
Spin dewetting refers to spontaneous rupture of the dispensed solution layer during spin coating, resulting in isolated but periodic, regular sized domains of the solute and is pre-dominant when the solute concentration (C n ) is very low. In this
Jeffrey M Brake et al.
Langmuir : the ACS journal of surfaces and colloids, 23(16), 8497-8507 (2007-06-28)
We report a study of the interactions of proteins with monolayers of phospholipids (D/L-alpha-dipalmitoyl phosphatidylcholine and L-alpha-dilauroyl phosphatidylcholine) spontaneously assembled at an interface between an aqueous phase and a 20-microm-thick film of a nematic liquid crystal (4'-pentyl-4-cyanobiphenyl). Because the orientation
Ahlam Nemati et al.
ACS nano, 13(9), 10312-10326 (2019-08-20)
The creation and transmission of chirality in molecular systems is a well-known, widely applied notion. Our understanding of how the chirality of nanomaterials can be controlled, measured, transmitted through space, and applied is less well understood. Dynamic assemblies for chiral

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