Description

4,4'-Biphenyldicarbonyl Chloride is a high-purity aromatic acid chloride derivative, serving as a critical bifunctional building block in advanced organic synthesis. Its value lies in its ability to introduce rigid, linear biphenyl linkages into polymer backbones and complex molecular architectures. This compound is essential for researchers and manufacturers in the pharmaceutical, liquid crystal, and high-performance polymer industries seeking to develop materials with specific thermal, mechanical, or optical properties.

Application

• Polymer Synthesis: A key monomer for producing high-temperature resistant polyamides, polyimides, and polyesters, used in advanced films, fibers, and engineering plastics.
• Pharmaceutical Intermediates: Employed in the synthesis of active pharmaceutical ingredients (APIs) and drug candidates that require a rigid, biphenyl core structure.
• Liquid Crystal Materials: Serves as a precursor for mesogenic compounds used in liquid crystal displays (LCDs) and optical devices.
• Cross-linking Agent: Used to cross-link polymers, enhancing their thermal stability, chemical resistance, and mechanical strength.
• Organic Semiconductor Research: A valuable building block for creating novel organic electronic materials and conjugated polymers.
• Dye and Pigment Synthesis: Acts as an intermediate in the production of specialized dyes and pigments with high color fastness.
• Metal-Organic Frameworks (MOFs): Utilized as an organic linker in the construction of porous MOF materials for catalysis and gas storage.
• Surface Modification: Used to functionalize surfaces or nanoparticles to alter their chemical properties and reactivity.

Basic Information

Product Name	4,4'-Biphenyldicarbonyl Chloride
CAS No.	2351-37-3
Molecular Formula	C14H8Cl2O2
Molecular Weight	279.12 g/mol
Synonyms	[4,4'-Biphenyl]dicarbonyl Dichloride; Biphenyl-4,4'-dicarbonyl Dichloride; 4,4'-Bibenzyldicarbonyl Chloride; Terephthaloyl Chloride, 4,4'-Biphenyl Derivative; p,p'-Biphenyldicarboxylic Acid Dichloride; 4,4'-Dicarboxybiphenyl Dichloride; Biphenyl-4,4'-diylbis(carbonyl chloride)
EINECS	219-091-1

Quality Control

Our 4,4'-Biphenyldicarbonyl Chloride is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR spectroscopy, to ensure it meets the stringent requirements for research and industrial synthesis. Certificates of Analysis (COA) detailing all specifications are provided with each shipment to guarantee traceability and consistency for our global B2B clients.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, containers must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from moisture, bases, and alcohols.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%
Heavy Metals	≤ 10 ppm

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