Description

4'-Methylbiphenyl-4-Carboxylic Acid is a high-purity biphenyl derivative carboxylic acid, serving as a critical building block in advanced organic synthesis. Its value lies in its versatile functional groups, enabling precise chemical modifications for creating complex molecular architectures. This compound is essential for research and development chemists in the pharmaceutical, agrochemical, and advanced materials industries seeking to develop new active ingredients and functional polymers.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of novel active pharmaceutical ingredients (APIs), particularly for non-steroidal anti-inflammatory drugs (NSAIDs) and other therapeutic agents.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and plant growth regulators, leveraging its biphenyl core for biological activity.
• Liquid Crystal & OLED Materials: Serves as a precursor for the synthesis of biphenyl-based liquid crystals and organic light-emitting diode (OLED) materials, where molecular rigidity and planarity are crucial.
• Polymer & Resin Modifier: Incorporated as a monomer or cross-linking agent to enhance the thermal stability, mechanical strength, and chemical resistance of specialty polymers and epoxy resins.
• Organic Synthesis Reagent: Employed in academic and industrial R&D laboratories for coupling reactions, metal-catalyzed transformations, and the construction of complex polycyclic structures.
• Dye & Pigment Intermediate: Acts as a foundational component in the synthesis of high-performance dyes and organic pigments, contributing to color fastness and stability.

Basic Information

Product Name	4'-Methylbiphenyl-4-Carboxylic Acid
CAS No.	720-73-0
Molecular Formula	C14H12O2
Molecular Weight	212.24 g/mol
Synonyms	4'-Methyl-[1,1'-biphenyl]-4-carboxylic acid; 4-(4-Methylphenyl)benzoic acid; p-Terphenyl-4'-carboxylic acid; 4-Carboxy-4'-methylbiphenyl; [1,1'-Biphenyl]-4-carboxylic acid, 4'-methyl-; Biphenyl-4-carboxylic acid, 4'-methyl-; 4-Methylbiphenyl-4'-carboxylic acid
EINECS	211-963-5

Quality Control

Our 4'-Methylbiphenyl-4-Carboxylic Acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for sensitive synthetic applications. A comprehensive Certificate of Analysis (COA) detailing purity, assay, and impurity profiles is provided with each shipment to guarantee traceability and batch-to-batch consistency.

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. The container must be kept tightly closed to prevent contamination and moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	245 - 250 °C
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.