328510
4′-Pentyl-4-biphenylcarbonitrile
liquid crystal (nematic), 98%
Synonym(s):
4-Cyano-4-pentylbiphenyl, 4-Pentyl-4-cyanobiphenyl, 5CB
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About This Item
Linear Formula:
CH3(CH2)4C6H4C6H4CN
CAS Number:
Molecular Weight:
249.35
NACRES:
NA.23
PubChem Substance ID:
UNSPSC Code:
12352103
EC Number:
255-093-2
MDL number:
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
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.
signalword
Warning
hcodes
Hazard Classifications
Skin Sens. 1
Storage Class
10 - Combustible liquids
wgk
WGK 3
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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Jin Pan et al.
Nanomaterials (Basel, Switzerland), 8(6) (2018-06-13)
Resistive pressure sensors generally employ microstructures such as pores and pyramids in the active layer or on the electrodes to reduce the Young’s modulus and improve the sensitivity. However, such pressure sensors always exhibit complex fabrication process and have difficulties
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.
Yu Xia et al.
Advanced materials (Deerfield Beach, Fla.), 28(43), 9637-9643 (2016-10-08)
Two-dimensional liquid-crystal elastomer (LCE) sheets with preprogrammed topological defects are prepared by aligning liquid-crystal monomers within micropatterned epoxy channels, followed by photopolymerization. Upon heating, the LCE films form various three-dimensional structures in agreement with theoretical design. The miniaturized LCE actuators