Description

1-Ethynyl-3-Phenylbenzene is a specialized aromatic acetylene derivative, also known as 3-Phenylphenylacetylene. This high-purity intermediate is valued for its unique molecular structure, which serves as a critical building block in advanced organic synthesis. It is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and materials science sectors for developing novel compounds and functional materials.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly for compounds requiring a rigid, conjugated backbone.
• Agrochemical Synthesis: Used in creating advanced herbicides, fungicides, and plant growth regulators that benefit from its specific aromatic-acetylene functionality.
• Material Science & OLED Development: Serves as a fundamental precursor for organic light-emitting diodes (OLEDs), liquid crystals, and other advanced electronic materials due to its excellent charge-transport properties.
• Cross-Coupling Reactions: An essential reagent in Sonogashira, Heck, and other palladium-catalyzed cross-coupling reactions to form complex biaryl and conjugated systems.
• Ligand & Catalyst Preparation: Employed in the synthesis of specialized ligands for transition metal catalysts used in asymmetric synthesis and polymerization processes.
• Polymer & Resin Modification: Acts as a monomer or modifier to introduce phenylacetylene groups into polymer chains, enhancing thermal stability and optical properties.

Basic Information

Item	Detail
Product Name	1-Ethynyl-3-Phenylbenzene
CAS No.	58650-11-6
Molecular Formula	C14H10
Molecular Weight	178.23 g/mol
Synonyms	3-Phenylphenylacetylene; m-Phenylphenylacetylene; 3-Ethynylbiphenyl; 1-Ethynyl-3-phenyl-benzene; Biphenyl-3-ylacetylene; (3-Biphenylyl)acetylene; 3-Biphenylacetylene; 3-Acetylenylbiphenyl
EINECS	Contact for details

Quality Control

Our 1-Ethynyl-3-Phenylbenzene is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistency. We provide detailed Certificates of Analysis (COA) with every shipment, confirming compliance with customer specifications and relevant industry standards for fine chemical intermediates.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. For long-term storage, consider under an inert atmosphere to maintain optimal stability.

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.