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

Description

4'-Octyl[1,1'-biphenyl]-4-carbonitrile, also known as 4′-octyl-4-biphenylcarbonitrile (8CB), is a low molar mass liquid crystal (LC) with a colorless liquid appearance. It exhibits different liquid crystalline phases depending on temperature conditions and is known for its responsiveness to subtle changes in temperature, shear, electric or magnetic fields, and the structure of solid surfaces with which it comes into contact.

Uses

Used in Liquid Crystal Display (LCD) Industry:
4'-Octyl[1,1'-biphenyl]-4-carbonitrile is used as a component in liquid crystal displays for its ability to form self-assembled monolayer films on highly ordered pyrolytic graphite, displaying a wide variety of structural forms that are crucial for the functioning of LCDs.
Used as Intermediates of Liquid Crystals:
In the chemical industry, 4'-Octyl[1,1'-biphenyl]-4-carbonitrile serves as an intermediate for the synthesis of various liquid crystal materials, which have applications in a range of technologies that rely on the unique properties of liquid crystals.

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.