Description

2,2'-Dimethyl-4,4'-Biphenyldicarboxylic Acid is a high-purity biphenyl-based dicarboxylic acid derivative, serving as a critical building block in advanced organic synthesis. This compound is valued for its rigid, substituted biphenyl core, which imparts specific structural and electronic properties to target molecules. It is primarily sought after by R&D chemists and process engineers in the pharmaceutical, agrochemical, and specialty polymer industries for applications requiring precise molecular architecture.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for non-steroidal anti-inflammatory drugs (NSAIDs) and other therapeutics requiring a rigid, lipophilic backbone.
• Liquid Crystal Materials: Serves as a core component in the production of monomers for liquid crystal polymers (LCPs) and display materials, where its dimethyl-substituted biphenyl structure contributes to desired mesogenic properties.
• High-Performance Polymers: Used as a monomer in the synthesis of polyamides, polyesters, and polyimides, enhancing thermal stability, mechanical strength, and chemical resistance in engineering plastics.
• Agrochemical Synthesis: Intermediate in the manufacture of advanced herbicides and fungicides, where its molecular framework is incorporated to optimize biological activity and environmental profile.
• Organic Electronic Materials: Building block for hole-transport materials, emitters, or host materials in organic light-emitting diodes (OLEDs) and other optoelectronic devices.
• Metal-Organic Frameworks (MOFs): Functions as an organic linker in the construction of porous MOF materials for gas storage, separation, and catalysis.
• Dye and Pigment Intermediate: Used in the synthesis of specialized dyes and pigments, contributing to color fastness and specific light-absorption characteristics.
• Research & Development: A valuable reagent in academic and industrial R&D for exploring new synthetic methodologies and developing novel functional materials.

Basic Information

Product Name	2,2'-Dimethyl-4,4'-Biphenyldicarboxylic Acid
CAS No.	117490-52-5
Molecular Formula	C16H14O4
Molecular Weight	270.28 g/mol
Synonyms	4,4'-Biphenyldicarboxylic acid, 2,2'-dimethyl-; 2,2'-Dimethyl[1,1'-biphenyl]-4,4'-dicarboxylic acid; 2,2'-Dimethyl-4,4'-biphenyldicarboxylate (parent acid); Biphenyl-4,4'-dicarboxylic acid, 2,2'-dimethyl-; 2,2'-Dimethylbiphenyl-4,4'-dicarboxylic Acid; NSC 405124; 4,4'-(2,2'-Dimethyl-1,1'-biphenyl)dicarboxylic acid
EINECS	Contact for details

Quality Control

Our 2,2'-Dimethyl-4,4'-Biphenyldicarboxylic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure identity, purity, and consistency meet the high standards required for advanced synthetic applications. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay (HPLC), related substances, and residual solvents. Our quality commitment supports compliance in cGMP and ISO 9001 environments where applicable.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong bases and oxidizing agents. For long-term storage, consider inert atmosphere conditions to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

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