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328510

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

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

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1 of 4

This Item
49152772205716582
4′-Pentyl-4-biphenylcarbonitrile liquid crystal (nematic), 98%

328510

4′-Pentyl-4-biphenylcarbonitrile

4′-Hydroxy-3′-iodoacetophenone 97%

722057

4′-Hydroxy-3′-iodoacetophenone

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

signalword

Warning

hcodes

Hazard Classifications

Skin Sens. 1

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter


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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
H A Fuster et al.
Science advances, 6(25), eabb1327-eabb1327 (2020-07-01)
Asymmetric interactions such as entropic (e.g., encoded by nonspherical shapes) or surface forces (e.g., encoded by patterned surface chemistry or DNA hybridization) provide access to functional states of colloidal matter, but versatile approaches for engineering asymmetric van der Waals interactions
Active Control of the Anchoring of 4`-Pentyl-4-cyanobiphenyl (5CB) at an Aqueous?Liquid Crystal Interface By Using a Redox-Active Ferrocenyl Surfactant
Brake JM, et al.
Langmuir, 19 (21), 8629?8637-8629?8637 null
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

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