Description

Benzoic Acid, 4,4'-(1,2-Phenylenedi-2,1-Ethynediyl)Bis- is a specialized organic compound featuring a conjugated bis(benzoic acid) structure linked by ethynylene and phenylene groups. This unique molecular architecture makes it a valuable advanced intermediate for synthesizing functional materials where precise electronic and structural properties are critical. It is primarily utilized by R&D chemists and material scientists in the fields of organic electronics, photovoltaics, and advanced polymer development.

Application

• Organic Semiconductor Precursor: Serves as a key building block for conjugated polymers and small molecules used in OLEDs, OFETs, and organic photovoltaics (OPVs).
• Metal-Organic Framework (MOF) Synthesis: Acts as a functionalized organic linker for constructing novel MOFs with tailored porosity and catalytic properties.
• Liquid Crystal & Polymer Additive: Used in the development of high-performance liquid crystalline materials and as a monomer for specialty polyesters or polyamides.
• Pharmaceutical Intermediate: Employed in the research and synthesis of complex drug candidates and bioactive molecules.
• Fluorescent Dye & Sensor Development: Its rigid, conjugated backbone makes it suitable for creating fluorescent probes and chemosensors.
• Cross-coupling Reactions: Utilized in Sonogashira, Suzuki, and other palladium-catalyzed cross-coupling reactions to create complex aromatic systems.

Basic Information

Product Name	Benzoic Acid, 4,4'-(1,2-Phenylenedi-2,1-Ethynediyl)Bis-
CAS No.	1258419-74-7
Molecular Formula	C24H14O4
Molecular Weight	366.37 g/mol
Synonyms	4,4'-(1,2-Phenylenebis(ethyne-2,1-diyl))dibenzoic Acid; 1,2-Bis(4-carboxyphenylethynyl)benzene; [1,1'-Biphenyl]-4,4'-dicarboxylic acid, 2',3'-diethynyl-; 2',3'-Diethynyl-[1,1'-biphenyl]-4,4'-dicarboxylic Acid; Bis(4-carboxyphenylethynyl)benzene
EINECS	Contact for details

Quality Control

Our high-purity Benzoic Acid derivative is produced under strict quality protocols to ensure batch-to-batch consistency for sensitive research and development applications. Each lot is characterized using advanced analytical techniques including HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to support your quality assurance and regulatory documentation needs.

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 incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Heavy Metals	< 20 ppm
Residue on Ignition	< 0.1%
Solubility	Soluble in DMF, DMSO; slightly soluble in THF

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