Description

5-Bromo-4-Methoxy-3-Methylbenzoic Acid is a high-purity, multi-functional aromatic carboxylic acid derivative, serving as a critical building block in advanced organic synthesis. Its value lies in the strategic positioning of bromine, methoxy, and methyl substituents on the benzoic acid core, which allows for precise structural modifications and the introduction of specific functionalities. This compound is essential for research chemists and process development scientists in the pharmaceutical and agrochemical industries, where it is used to create novel active ingredients and complex intermediates.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting central nervous system (CNS) disorders and anti-inflammatory agents.
• Agrochemical Synthesis: Used in the development of next-generation herbicides and fungicides, where its halogenated aromatic structure contributes to biological activity.
• Liquid Crystal & OLED Material Research: Serves as a starting material for synthesizing advanced organic electronic materials and liquid crystal compounds due to its rigid, substituted benzene ring.
• Polymer Chemistry: Acts as a monomer or functionalization agent for creating specialty polymers with tailored thermal and mechanical properties.
• Chemical Biology & Proteomics: Employed as a versatile scaffold for designing molecular probes, enzyme inhibitors, and bioconjugation linkers.
• Custom Synthesis & Contract Manufacturing: A valuable substrate for custom chemical synthesis services, supporting R&D and scale-up projects for clients worldwide.

Basic Information

Item	Details
Product Name	5-Bromo-4-Methoxy-3-Methylbenzoic Acid
CAS No.	808750-20-1
Molecular Formula	C9H9BrO3
Molecular Weight	245.07 g/mol
Synonyms	5-Bromo-4-methoxy-3-methylbenzoic acid; 3-Methyl-5-bromo-4-methoxybenzoic acid; Benzoic acid, 5-bromo-4-methoxy-3-methyl-; 808750-20-1; 4-Methoxy-3-methyl-5-bromobenzoic acid; 5-Bromo-4-methoxy-m-toluic acid; 3-Methyl-4-methoxy-5-bromobenzoic acid
EINECS	Contact for details

Quality Control

Every batch of 5-Bromo-4-Methoxy-3-Methylbenzoic Acid is manufactured under a strict quality management system and undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Our standard grade typically meets a purity specification of ≥97% (HPLC), with higher purity grades available upon request. A detailed Certificate of Analysis (COA) is provided with each shipment, documenting key parameters such as assay, related substances, and residual solvents.

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). The compound is moisture-sensitive; keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
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.