Description

4-Bromo-3-Methylthiophenecarboxylic Acid is a high-purity, functionalized heterocyclic building block essential for advanced organic synthesis. This compound matters for its role as a key intermediate in the development of complex molecules, particularly in the pharmaceutical and agrochemical sectors. It is primarily needed by research chemists and process development scientists working on active pharmaceutical ingredients (APIs), crop protection agents, and novel materials.

Application

• Pharmaceutical Intermediate: A crucial building block in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and metabolic diseases.
• Agrochemical Synthesis: Used in the research and development of next-generation herbicides, fungicides, and insecticides, leveraging the thiophene scaffold's bioactivity.
• Material Science Research: Serves as a precursor for functionalized monomers in the development of conductive polymers and organic electronic materials.
• Ligand and Catalyst Development: Employed in the creation of specialized ligands for transition metal catalysis and organocatalysts.
• Chemical Biology Probes: Utilized to synthesize molecular probes for studying biological pathways and protein interactions.
• Custom Synthesis and Contract Manufacturing: A key starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving the global life sciences industry.

Basic Information

Product Name	4-Bromo-3-Methylthiophenecarboxylic Acid
CAS No.	265652-39-9
Molecular Formula	C7H5BrO2S
Molecular Weight	233.08 g/mol
Synonyms	3-Methyl-4-bromothiophene-2-carboxylic acid; 4-Bromo-3-methyl-2-thiophenecarboxylic acid; 2-Thiophenecarboxylic acid, 4-bromo-3-methyl-; 4-Bromo-3-methylthiophene-2-carboxylic acid; 265652-39-9; 4-Br-3-Me-thiophene-2-COOH
EINECS	Contact for details

Quality Control

Our 4-Bromo-3-Methylthiophenecarboxylic Acid is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all critical quality attributes. Our commitment to supply chain reliability and documentation transparency supports your regulatory and R&D requirements.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to exclude moisture. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (NMR)	Conforms to structure
Assay (HPLC)	≥97.0%
Melting Point	Contact for details
Loss on Drying	≤1.0%
Residue on Ignition	≤0.1%
Heavy Metals	≤20 ppm

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