MilliporeSigma
All Photos(1)

338672

Sigma-Aldrich

4′-(Octyloxy)-4-biphenylcarbonitrile

liquid crystal (nematic)

Synonym(s):
4′-(n -Octyloxy)-4-cyanobiphenyl, 4-(Octyloxy)-4′-cyanobiphenyl, 4′-Octyloxy-1,1′-biphenyl-4-carbonitrile, 4-(4-Octyloxyphenyl)benzonitrile, 4-Cyano-4′-(n -octyloxy)biphenyl, 4′-(Octyloxy)-4-biphenylcarbonitrile, 4′-(Octyloxy)-4-cyanobiphenyl, 4′-(Octyloxy)[1,1′-biphenyl]-4-carbonitrile, 4-Cyano-4′-(octyloxy)-1,1′-biphenyl, p -(Octyloxy)-p ′-cyanobiphenyl, 4-Cyano-4′-(octyloxy)biphenyl, 4-Cyano-4′-n -octyloxy-1,1′-biphenyl, p -Cyano-p ′-(octyloxy)biphenyl
Linear Formula:
CH3(CH2)7OC6H4C6H4CN
CAS Number:
Molecular Weight:
307.43
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.23

form

liquid crystal (nematic)

Quality Level

mp

51-77 °C (lit.)

SMILES string

CCCCCCCCOc1ccc(cc1)-c2ccc(cc2)C#N

InChI

1S/C21H25NO/c1-2-3-4-5-6-7-16-23-21-14-12-20(13-15-21)19-10-8-18(17-22)9-11-19/h8-15H,2-7,16H2,1H3

InChI key

GPGGNNIMKOVSAG-UHFFFAOYSA-N

General description

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

Application

8CB may be used in the preparation of asymmetrical zinc phthalocyanine (aZnPc)-functional photocurable copolymer.
Monolayer films of the LCs deposited onto highly ordered pyrolytic graphite, these self-assembled films display a wide variety of structural forms.

Packaging

1 g in glass bottle
250 mg in glass bottle
Bottomless glass bottle. Contents are inside inserted fused cone.

Hazard Statements

Precautionary Statements

Hazard Classifications

Aquatic Chronic 4

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

235.4 °F

Flash Point(C)

113 °C

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

Enter Lot Number to search for Certificate of Origin (COO).

Preparation of a new polymer-dispersed liquid crystal film by using phthalocyanine-functional photocurable copolymer.
Mert H, et al.
Journal of Applied Polymer Science, 132(10) (2015)
Mechanism of molecular ordering in monolayer liquid crystal films.
Patrick DL, et al.
The Journal of Physical Chemistry, 100(20), 8478-8481 (1996)
Separation of nematic and smectic-A potential effects on solute ordering in a series of binary 6OCB-8OCB mixtures
Burnell EE, et al.
Canadian Journal of Chemistry, 89(7), 900-908 (2011)
Substrate defects and variations in interfacial ordering of monolayer molecular films on graphite.
Patrick DL, et al.
Langmuir, 10(1), 298-302 (1994)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service