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328510

Sigma-Aldrich

4′-Pentyl-4-biphenylcarbonitrile

liquid crystal (nematic), 98%

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

Quality Level

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

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.

Packaging

1 g in glass bottle

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

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

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Zongdai Liu et al.
Soft matter, 15(28), 5638-5643 (2019-06-28)
For nematic liquid crystals (LCs), a disclination line is formed when the director of the LCs changes abruptly. In this study, we demonstrate an approach to form dynamic disclination lines by flowing the nematic liquid crystal 4-cyano-4'-pentylbiphenyl (5CB) in rectangular
A V Zakharov et al.
The Journal of chemical physics, 132(22), 224906-224906 (2010-06-17)
Dynamic field pumping principle has been developed utilizing the interactions of both the director and velocity fields and temperature-redistribution across a two-dimensional (2D) homogeneously aligned liquid crystal (HALC) film under the influence both of a heat flow directed normal to
Joo Song Lee et al.
Science (New York, N.Y.), 362(6416), 817-821 (2018-11-18)
Although polycrystalline hexagonal boron nitride (PC-hBN) has been realized, defects and grain boundaries still cause charge scatterings and trap sites, impeding high-performance electronics. Here, we report a method of synthesizing wafer-scale single-crystalline hBN (SC-hBN) monolayer films by chemical vapor deposition.
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
Yu Xia et al.
Advanced materials (Deerfield Beach, Fla.), 28(43), 9637-9643 (2016-10-08)
Two-dimensional liquid-crystal elastomer (LCE) sheets with preprogrammed topological defects are prepared by aligning liquid-crystal monomers within micropatterned epoxy channels, followed by photopolymerization. Upon heating, the LCE films form various three-dimensional structures in agreement with theoretical design. The miniaturized LCE actuators

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