328510

4′-Pentyl-4-biphenylcarbonitrile

liquid crystal (nematic), 98%

• Synonym(s): 4-Cyano-4-pentylbiphenyl, 4-Pentyl-4-cyanobiphenyl, 5CB
• Linear Formula: CH₃(CH₂)₄C₆H₄C₆H₄CN
• CAS Number: 40817-08-1
• Molecular Weight: 249.35
• EC Number: 255-093-2
• MDL number: MFCD00036350
• UNSPSC Code: 12352103
• PubChem Substance ID: 24859381
• NACRES: NA.23

Properties

• 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

Description

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 18^oC and 35^oC 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.

Safety Information

• pictograms: GHS07
• signalword: Warning
• hcodes: H317
• pcodes: P261 - P272 - P280 - P302 + P352 - P333 + P313 - P362 + P364
• Hazard Classifications: Skin Sens. 1
• Storage Class: 10 - Combustible liquids
• wgk_germany: WGK 3
• ppe: Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter