338680

4′-Octyl-4-biphenylcarbonitrile

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
• Linear Formula: CH₃(CH₂)₇C₆H₄C₆H₄CN
• CAS Number: 52709-84-9
• Molecular Weight: 291.43
• EC Number: 258-120-6
• MDL number: MFCD00075146
• PubChem Substance ID: 24860562
• NACRES: NA.23

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.

Safety Information

• Pictograms: GHS07
• Signal Word: Warning
• Hazard Statements: H312 + H332 - H315 - H319 - H335
• Precautionary Statements: 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 Code: 10 - Combustible liquids
• WGK: WGK 3
• Flash Point(F): 235.4 °F - closed cup
• Flash Point(C): 113 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves