Description

4-Ethynyl-2-Methyl-1,1'-Biphenyl is a specialized aromatic compound featuring both biphenyl and ethynyl functional groups, making it a versatile and valuable building block in advanced organic synthesis. Its molecular architecture is critical for constructing complex organic frameworks, particularly in the development of functional materials and active pharmaceutical ingredients (APIs). This high-purity intermediate is essential for R&D chemists and process development scientists in the pharmaceutical, agrochemical, and advanced materials sectors seeking to innovate with precision.

Application

• Pharmaceutical Intermediate: Serves as a key synthon in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders or acting as kinase inhibitors.
• Liquid Crystal & OLED Material Precursor: Used in the development of organic light-emitting diodes (OLEDs) and liquid crystal displays (LCDs) due to its rigid, conjugated biphenyl core.
• Agrochemical Synthesis: Acts as a building block for creating advanced herbicides, fungicides, and plant growth regulators with enhanced efficacy.
• Polymer & Resin Modifier: Incorporated into specialty polymers to modify thermal stability, optical properties, or cross-linking density.
• Organic Electronic Material: Employed in the research and production of organic semiconductors and conductive polymers.
• Catalyst Ligand Framework: Provides a structural basis for developing novel ligands used in homogeneous catalysis for fine chemical production.
• Chemical Research & Development: A fundamental reagent for academic and industrial research exploring new organic reactions and material properties.

Basic Information

Product Name	4-Ethynyl-2-Methyl-1,1'-Biphenyl
CAS No.	56917-40-9
Molecular Formula	C15H12
Molecular Weight	192.26 g/mol
Synonyms	2-Methyl-4-ethynylbiphenyl; 1,1'-Biphenyl, 4-ethynyl-2-methyl-; 4-Ethynyl-2-methylbiphenyl; 2-Methyl-4-ethynyl-1,1'-biphenyl; 4-(2-Methylphenyl)phenylacetylene; (2-Methyl-[1,1'-biphenyl]-4-yl)acetylene
EINECS	Contact for details

Quality Control

Our 4-Ethynyl-2-Methyl-1,1'-Biphenyl is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent lot-to-lot quality suitable for sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store under an inert atmosphere (e.g., nitrogen or argon) in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its sensitivity to light and oxidation, prolonged exposure to air or light should be avoided to maintain product integrity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 3.0%

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