Description

2-Thiophenecarboxylic Acid, 5-Bromo-3-Methyl-, Ethyl Ester is a high-purity, multi-functional heterocyclic building block essential for advanced organic synthesis. This compound is valued for its role in constructing complex molecular architectures, particularly in the development of novel active pharmaceutical ingredients (APIs) and functional materials. It is primarily sought after by research chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for creating new compounds with targeted properties.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly for molecules containing functionalized thiophene cores.
• Agrochemical Synthesis: Used in the creation of advanced pesticides and herbicides where the bromo and ester functionalities allow for further derivatization.
• Material Science Research: Serves as a precursor for organic electronic materials, such as conductive polymers and organic semiconductors, due to its thiophene backbone.
• Ligand and Catalyst Development: Employed in the synthesis of specialized ligands for metal catalysis and coordination chemistry applications.
• Chemical Biology Probes: Utilized as a building block for creating molecular probes and tags used in biochemical research and diagnostics.
• Custom Synthesis and Contract Manufacturing: A critical starting material for custom synthesis houses and CDMOs (Contract Development and Manufacturing Organizations) serving global clients.

Basic Information

Product Name	2-Thiophenecarboxylic Acid, 5-Bromo-3-Methyl-, Ethyl Ester
CAS No.	909010-86-2
Molecular Formula	C9H9BrO2S
Molecular Weight	261.14 g/mol
Synonyms	Ethyl 5-Bromo-3-methyl-2-thiophenecarboxylate; 5-Bromo-3-methyl-2-thiophenecarboxylic Acid Ethyl Ester; 5-Bromo-3-methylthiophene-2-carboxylic acid ethyl ester; 2-Thiophenecarboxylic acid, 5-bromo-3-methyl-, ethyl ester; Ethyl 5-bromo-3-methylthiophene-2-carboxylate; 3-Methyl-5-bromothiophene-2-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our 2-Thiophenecarboxylic Acid, 5-Bromo-3-Methyl-, Ethyl Ester is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with each shipment to support your quality assurance and regulatory needs.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.