52709-84-9

Basic information

• Product Name: 4'-Octyl[1,1'-biphenyl]-4-carbonitrile
• Synonyms: 1’-biphenyl)-4-carbonitrile,4’-octyl-(;1’-Biphenyl)-4-carbonitrile,4’-octyl-(1;1’-biphenyl]-4-carbonitrile,4’-octyl-[;4’-octyl-(1,1’-biphenyl)-4-carbonitrile;4-cyano-4’-octyl-1,1’-biphenyl;4'-Octyl[1,1'-biphenyl]-4-carbonitrile;4-octylcyanodiphenyl;80bf
• CAS NO: 52709-84-9
• Molecular Formula: C₂₁H₂₅N
• Molecular Weight: 291.43
• EINECS: 258-120-6
• Product Categories: Biphenyl & Diphenyl ether;Liquid Crystals;Nematic;Organic Electronics and Photonics
• Mol File: 52709-84-9.mol
• Article Data: 2

Chemical Properties

• Melting Point: 20-22℃
• Boiling Point: 218°C/2mmHg(lit.)
• Flash Point: >230 °F
• Appearance: /liquid crystal (nematic)
• Density: 1 g/cm³
• Storage Temp.: Sealed in dry,Room Temperature
• Water Solubility: Insoluble in water.
• CAS DataBase Reference: 4'-Octyl[1,1'-biphenyl]-4-carbonitrile(CAS DataBase Reference)
• NIST Chemistry Reference: 4'-Octyl[1,1'-biphenyl]-4-carbonitrile(52709-84-9)
• EPA Substance Registry System: 4'-Octyl[1,1'-biphenyl]-4-carbonitrile(52709-84-9)

Safety Data

• Hazard Codes: Xn
• Statements: 20/21/22-36/37/38
• Safety Statements: 26-37/39
• RIDADR: 3276
• WGK Germany: 3
• RTECS: DV1764400
• TSCA: Yes
• Hazardous Substances Data: 52709-84-9(Hazardous Substances Data)

Usage

Chemical Properties

Colorless liquid

Uses

Different sources of media describe the Uses of 52709-84-9 differently. You can refer to the following data:
1. Monolayer films of the LCs deposited onto highly ordered pyrolytic graphite, these self-assembled films display a wide variety of structural forms.
2. Intermediates of Liquid Crystals

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.

Upstream product

• 71691-02-6 4-(octyl)phenylmagnesium bromide 
• 106-37-6 1.4-dibromobenzene 
• 111-64-8 n-octanoic acid chloride 
• 7116-97-4 4-octyl-1,1′-biphenyl 
• 47162-00-5 1-biphenyl-4-yl-octan-1-one 
• 92-52-4 biphenyl 
• 63619-61-4 4-bromo-4′-octyl-1,1′-biphenyl 
• 93972-16-8 4'-Octyl-biphenyl-4-carbaldehyde oxime 

Downstream Products

• 103517-46-0 PtCl₂(CH₃(CH₂)7(C₆H₄)2CN)2 
• 59662-49-6 4-n-octylbiphenyl-4'-carboxylic acid 

Relevant articles and documents

Synthesis of Mesogenic Compounds, Catalyzed by Metal Complexes. I. Monoalkylation and Monoarylation of 1,4-Dibromobenzene in the Synthesis of 4-n-Alkyl- and 4-n-Alkoxy-4'-Cyanobiphenyls Catalyzed by Palladium

New methods of synthesis of mesomorphic 4-n-alkyl- and 4-n-alkoxy-4'-cyanobiphenyls are developed, based on the palladium catalyzed highly selective reactions of 1,4-dibromobenzene with alkyl and aryl Grignard reagents.