Description

4'-Heptyloxy-4-Cyanobiphenyl is a high-purity liquid crystal compound, also known as 7OCB. This cyanobiphenyl derivative is a critical component in the formulation of nematic liquid crystal mixtures, valued for its ability to modulate the electro-optical properties of displays. It is primarily required by manufacturers of liquid crystal displays (LCDs), advanced optical devices, and research laboratories developing new electro-optic materials.

Application

• Key monomer in the synthesis of nematic liquid crystal (LC) mixtures for Twisted Nematic (TN) and Super Twisted Nematic (STN) displays.
• Component in ferroelectric and antiferroelectric liquid crystal formulations for fast-switching devices.
• Used in tunable photonic crystals and optical phase modulators for photonics research.
• Intermediate for the synthesis of more complex liquid crystal polymers and elastomers.
• Essential material in academic and industrial R&D for studying mesophase behavior and structure-property relationships.
• Potential use in sensor technology utilizing liquid crystal-based detection systems.

Basic Information

Product Name	4'-Heptyloxy-4-Cyanobiphenyl
CAS No.	52364-72-4
Molecular Formula	C20H23NO
Molecular Weight	293.40 g/mol
Synonyms	7OCB; 4-Cyano-4'-heptyloxybiphenyl; 4'-n-Heptyloxy-4-cyanobiphenyl; 4-Cyano-4'-n-heptyloxybiphenyl; 4-(4-Heptyloxyphenyl)benzonitrile; 4'-Heptyloxy[1,1'-biphenyl]-4-carbonitrile; Liquid Crystal 7OCB; 4-Cyano-4'-heptyloxy-1,1'-biphenyl
EINECS	Contact for details

Quality Control

Our 4'-Heptyloxy-4-Cyanobiphenyl is produced under strict quality management systems to ensure batch-to-batch consistency and high performance in advanced applications. We provide comprehensive Certificates of Analysis (COA) detailing purity, identity, and impurity profiles. Our quality commitment aligns with the stringent requirements of the electronics and advanced materials industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from heat and incompatible materials. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline solid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 99.0%
Purity (GC)	≥ 99.5%
Melting Point	54 - 57 °C
Clearing Point	74 - 77 °C
Heavy Metals	< 10 ppm
Residue on Ignition	< 0.1%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.