Description

4-((4-Pentylphenyl)Ethynyl)Benzoic Acid is a high-purity, functionalized benzoic acid derivative featuring a rigid tolane (diphenylacetylene) core structure terminated with a pentyl chain and a carboxylic acid group. This compound matters as a versatile advanced organic intermediate and building block for synthesizing complex molecules, particularly in materials science and pharmaceutical research. It is primarily needed by R&D chemists and process engineers in the liquid crystal display (LCD), organic electronics, and fine chemical sectors for creating novel functional materials.

Application

• Liquid Crystal (LC) Material Synthesis: A key intermediate for creating tolane-based nematic and ferroelectric liquid crystals used in high-performance displays.
• Organic Semiconductor Precursor: Serves as a building block for conjugated molecules in organic field-effect transistors (OFETs) and photovoltaic materials.
• Pharmaceutical Intermediate: Used in the research and development of novel drug candidates, leveraging its rigid, functionalizable scaffold.
• Metal-Organic Framework (MOF) Linker: The carboxylic acid group allows coordination with metal ions to construct porous crystalline materials for gas storage or catalysis.
• Polymer Modification: Incorporated into polymer backbones or as a side chain to impart liquid crystalline properties or alter thermal and optical characteristics.
• Nonlinear Optical (NLO) Materials: The extended π-conjugated system makes it a candidate for developing materials with second-harmonic generation (SHG) properties.

Basic Information

Product Name	4-((4-Pentylphenyl)Ethynyl)Benzoic Acid
CAS No.	109083-03-6
Molecular Formula	C20H20O2
Molecular Weight	292.37 g/mol
Synonyms	4-[(4-Pentylphenyl)ethynyl]benzoic Acid; 4-(4-Pentylphenylethynyl)benzoic Acid; Benzoic acid, 4-[(4-pentylphenyl)ethynyl]-; 4-(p-Pentylphenylethynyl)benzoic Acid; 4-(4'-Pentylphenylethynyl)benzoic Acid; 4-(4-Pentylphenylethynyl)benzoic Acid; 4-((4-Pentylphenyl)ethynyl)benzoic acid; Tolane-based benzoic acid derivative
EINECS	Contact for details

Quality Control

Our 4-((4-Pentylphenyl)Ethynyl)Benzoic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure high chemical purity and structural integrity, critical for sensitive applications in electronics and pharmaceuticals. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

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 strong acids and organic solvents. For long-term storage, consider storage under an inert atmosphere to prevent potential oxidation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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