Description

5-Methoxy-3-(4-Methylphenyl)Benzoic Acid is a high-purity, synthetically derived aromatic carboxylic acid building block. This compound matters as a critical intermediate in advanced organic synthesis, offering a unique substitution pattern for constructing complex molecular architectures. It is primarily needed by pharmaceutical R&D teams and fine chemical manufacturers developing active pharmaceutical ingredients (APIs), agrochemicals, and advanced materials.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly in central nervous system (CNS) and anti-inflammatory research.
• Agrochemical Synthesis: Used in the development of advanced herbicides and fungicides due to its bioactive aromatic core.
• Liquid Crystal & OLED Materials: Serves as a precursor for creating charge-transport or emissive layers in electronic display technologies.
• Polymer Modification: Acts as a functional monomer or cross-linking agent for engineering plastics and high-performance resins.
• Organic Ligand Synthesis: Utilized in the preparation of ligands for catalysis and metal-organic frameworks (MOFs).
• Academic & Contract Research: Essential for methodological studies and custom synthesis projects in university and CRO laboratories.

Basic Information

Product Name	5-Methoxy-3-(4-Methylphenyl)Benzoic Acid
CAS No.	1261889-23-9
Molecular Formula	C15H14O3
Molecular Weight	242.27 g/mol
Synonyms	3-(4-Methylphenyl)-5-methoxybenzoic acid; 5-Methoxy-3-(p-tolyl)benzoic acid; Benzoic acid, 5-methoxy-3-(4-methylphenyl)-; [1,1'-Biphenyl]-3-carboxylic acid, 4'-methyl-5-methoxy-; 4'-Methyl-5-methoxy[1,1'-biphenyl]-3-carboxylic acid
EINECS	Contact for details

Quality Control

Our 5-Methoxy-3-(4-Methylphenyl)Benzoic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting full specifications are available for every shipment. We support compliance with REACH and other global regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents and bases.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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