Description

4-Ethynyl-Biphenyl is a high-purity organic building block featuring a biphenyl core with an ethynyl functional group. This compound is valued for its role as a key intermediate in advanced material synthesis and pharmaceutical research, where its rigid, conjugated structure is essential. It is primarily sought by R&D chemists and process engineers in the fields of organic electronics, liquid crystal displays (LCDs), and medicinal chemistry for constructing complex molecular architectures.

Application

• Organic Light-Emitting Diodes (OLEDs): Serves as a core building block for electron-transport materials and host materials in emissive layers.
• Liquid Crystal Materials: Used in the synthesis of advanced liquid crystal compounds for display applications.
• Pharmaceutical Intermediates: Acts as a crucial synthon in the development of active pharmaceutical ingredients (APIs), particularly those requiring rigid, aromatic linkers.
• Polymer Chemistry: Employed as a monomer or cross-linking agent in the production of high-performance, conjugated polymers.
• Material Science Research: Utilized in academic and industrial labs for developing novel organic semiconductors and nonlinear optical materials.
• Catalysis Ligand Synthesis: Functions as a precursor for ligands used in transition metal catalysis.

Basic Information

Product Name	4-Ethynyl-Biphenyl
CAS No.	255056-59-8
Molecular Formula	C14H10
Molecular Weight	178.23 g/mol
Synonyms	[1,1'-Biphenyl]-4-ylethyne; 4-Ethynyl-1,1'-biphenyl; p-Ethynylbiphenyl; 4-Acetylenylbiphenyl; 4-Biphenylethyne; (4-Biphenylyl)acetylene
EINECS	Contact for details

Quality Control

Our 4-Ethynyl-Biphenyl is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and batch-to-batch consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with customer specifications.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details

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