Description

3,3',5,5'-Tetramethyl-[1,1'-Biphenyl]-4,4'-Dicarboxylic Acid is a high-purity biphenyl derivative, serving as a critical building block in advanced organic synthesis. Its rigid, symmetrical structure and dual carboxylic acid functionality make it an essential precursor for creating complex molecules with tailored properties. This compound is primarily sought by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and specialty polymer sectors for developing new active ingredients and high-performance materials.

Application

• Pharmaceutical Intermediate: Key starting material or advanced intermediate in the synthesis of novel drug candidates, particularly for creating rigid, sterically hindered molecular frameworks.
• Liquid Crystal & OLED Materials: Serves as a core unit for synthesizing monomers and polymers used in liquid crystal displays (LCDs) and organic light-emitting diodes (OLEDs) due to its planar, conjugated structure.
• High-Performance Polymer Monomer: Used in the production of polyamides, polyimides, and polyesters, imparting thermal stability, chemical resistance, and mechanical strength to the final polymers.
• Agrochemical Synthesis: Intermediate in the development of modern herbicides, fungicides, and plant growth regulators.
• Metal-Organic Framework (MOF) Precursor: The dicarboxylic acid groups act as organic linkers for constructing porous MOF materials used in gas storage, separation, and catalysis.
• Crosslinking Agent: Functions as a crosslinker in epoxy resins and other thermosetting polymers to enhance network density and performance.
• Organic Synthesis Building Block: Versatile reagent for constructing complex, multi-functional aromatic compounds in academic and industrial research.

Basic Information

Product Name	3,3',5,5'-Tetramethyl-[1,1'-Biphenyl]-4,4'-Dicarboxylic Acid
CAS No.	58019-29-7
Molecular Formula	C20H20O4
Molecular Weight	324.37 g/mol
Synonyms	4,4'-Biphenyldicarboxylic Acid, 3,3',5,5'-Tetramethyl-; 3,3',5,5'-Tetramethylbiphenyl-4,4'-dicarboxylic Acid; TMBA; Tetramethylbiphenyldicarboxylic Acid; 4,4'-(3,3',5,5'-Tetramethyl-1,1'-biphenyl-4,4'-diyl)dibenzoic Acid (alternative IUPAC); 58019-29-7; Biphenyl-4,4'-dicarboxylic acid, 3,3',5,5'-tetramethyl-
EINECS	Contact for details

Quality Control

Our 3,3',5,5'-Tetramethyl-[1,1'-Biphenyl]-4,4'-Dicarboxylic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and FTIR, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specified parameters. Our quality commitment aligns with cGMP principles for pharmaceutical intermediates, ensuring reliability for your most critical synthesis applications.

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). This product is hygroscopic (moisture-sensitive). For long-term storage, consider using desiccants or storing under an inert atmosphere to maintain purity and prevent caking.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%
Melting Point	Contact for details

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