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338680

4′-Octyl-4-biphenylcarbonitrile

Name: 4′-Octyl-4-biphenylcarbonitrile
Brand: ALDRICH

liquid crystal (nematic), 98%

Synonym(s):

4′-n -Octyl-4-cyanobiphenyl, 4′-Octyl-4-biphenylcarbonitrile, 4′-Octyl-4-cyanobiphenyl, 4′-Octyl[1,1′-biphenyl]-4-carbonitrile, 4-n -Octyl-4′-cyanobiphenyl, 4-Cyano-4′-n -octylbiphenyl, 4-Cyano-4′-octyl-1,1′-biphenyl, 4-Cyano-4′-octylbiphenyl, 4-Octyl-4′-cyanobiphenyl, p -n -Octyl-p ′-cyanobiphenyl, p -Cyano-p ′-octylbiphenyl, p -Octyl-p ′-cyanobiphenyl

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About This Item

Linear Formula:

CH₃(CH₂)₇C₆H₄C₆H₄CN

CAS Number:

52709-84-9

Molecular Weight:

291.43

NACRES:

NA.23

PubChem Substance ID:

24860562

UNSPSC Code:

12352103

EC Number:

258-120-6

MDL number:

MFCD00075146

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Properties

Quality Level

100

assay

98%

form

liquid crystal (nematic)

SMILES string

CCCCCCCCc1ccc(cc1)-c2ccc(cc2)C#N

InChI

1S/C21H25N/c1-2-3-4-5-6-7-8-18-9-13-20(14-10-18)21-15-11-19(17-22)12-16-21/h9-16H,2-8H2,1H3

InChI key

CSQPODPWWMOTIY-UHFFFAOYSA-N

Description

General description

4′-octyl-4-biphenylcarbonitrile (8CB) is a low molar mass liquid crystal (LC), which shows different liquid crystalline phases depending on temperature conditions. Under normal temperature conditions 8CB exists only as a bulk smectic-A phase. LCs are responsive to subtle changes in temperature, shear, electric (or magnetic) fields, and the structure of solid surfaces with which they are in contact.

Application

Monolayer films of the LCs deposited onto highly ordered pyrolytic graphite, these self-assembled films display a wide variety of structural forms.

pictograms

GHS07

signalword

Warning

hcodes

H312 + H332,H315,H319,H335

pcodes

P261 - P264 - P280 - P302 + P352 + P312 - P304 + P340 + P312 - P305 + P351 + P338

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk

WGK 3

flash_point_f

235.4 °F - closed cup

flash_point_c

113 °C - closed cup

ppe

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

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Substrate defects and variations in interfacial ordering of monolayer molecular films on graphite.

Patrick DL, et al.

Langmuir, 10(1), 298-302 (1994)

Mechanism of molecular ordering in monolayer liquid crystal films.