Description

5-Bromo-4-Methylthiophene-2-Carboxylic Acid is a high-purity, functionalized thiophene derivative serving as a critical building block in advanced organic synthesis. This compound is essential for researchers and manufacturers requiring precise molecular architecture for developing novel materials and active compounds. It is primarily utilized in the pharmaceutical, agrochemical, and material science industries for the synthesis of complex molecules and functional polymers.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new active pharmaceutical ingredients (APIs), particularly for candidates with thiophene-based cores.
• Agrochemical Synthesis: Used in the production of advanced pesticides and herbicides, where the bromo and carboxylic acid groups allow for further functionalization.
• Material Science & Organic Electronics: Serves as a precursor for conjugated polymers and small molecules used in organic light-emitting diodes (OLEDs), organic photovoltaics (OPVs), and semiconductors.
• Ligand & Catalyst Development: Employed in the synthesis of specialized ligands for metal-organic frameworks (MOFs) or catalysts in cross-coupling reactions.
• Chemical Research: A versatile starting material in academic and industrial R&D for exploring new synthetic pathways and creating novel chemical entities.
• Fine Chemical Production: Integral to the multi-step synthesis of complex fine chemicals and specialty dyes.

Basic Information

Product Name	5-Bromo-4-Methylthiophene-2-Carboxylic Acid
CAS No.	54796-53-1
Molecular Formula	C7H5BrO2S
Molecular Weight	233.08 g/mol
Synonyms	5-Bromo-4-methyl-2-thiophenecarboxylic acid; 4-Methyl-5-bromothiophene-2-carboxylic acid; 2-Thiophenecarboxylic acid, 5-bromo-4-methyl-; 5-Bromo-4-methylthiophene-2-carboxylate; 5-Br-4-Me-thiophene-2-COOH
EINECS	Contact for details

Quality Control

Our production of 5-Bromo-4-Methylthiophene-2-Carboxylic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and GC-MS, to ensure identity, purity, and consistency. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with agreed specifications. We support cGMP and ISO 9001 standards for reliable supply to regulated industries.

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). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept sealed under an inert atmosphere when possible to maintain stability and prevent degradation.

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.