Description

Methyl 4-Bromo-5-Ethylthiophene-2-Carboxylate is a high-purity, synthetically valuable heterocyclic building block. This compound is essential for advanced organic synthesis, particularly in the development of novel pharmaceuticals and functional materials. It is primarily sought by research chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), especially those containing functionalized thiophene cores for therapeutic applications.
• Agrochemical Research: Used in the development of new crop protection agents, herbicides, and fungicides where the bromo and ester functionalities allow for further derivatization.
• Material Science: Serves as a monomer or building block for creating conjugated polymers and organic electronic materials, such as organic semiconductors and OLED components.
• Chemical Synthesis: Utilized in cross-coupling reactions (e.g., Suzuki, Stille) and as a versatile substrate for introducing the 4-bromo-5-ethylthiophene moiety into more complex molecules.
• Ligand and Catalyst Development: Acts as a starting material for synthesizing specialized ligands used in homogeneous catalysis.

Basic Information

Item	Details
Product Name	Methyl 4-Bromo-5-Ethylthiophene-2-Carboxylate
CAS No.	1047645-89-5
Molecular Formula	C8H9BrO2S
Molecular Weight	249.13 g/mol
Synonyms	Methyl 4-bromo-5-ethyl-2-thiophenecarboxylate; 4-Bromo-5-ethyl-2-thiophenecarboxylic acid methyl ester; 2-Thiophenecarboxylic acid, 4-bromo-5-ethyl-, methyl ester; Methyl 5-ethyl-4-bromothiophene-2-carboxylate; 5-Ethyl-4-bromothiophene-2-carboxylic acid methyl ester
EINECS	Contact for details

Quality Control

Our Methyl 4-Bromo-5-Ethylthiophene-2-Carboxylate is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles. We adhere to relevant industry standards, and our quality system supports cGMP requirements for advanced intermediate production.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is light-sensitive and should be handled accordingly to maintain stability.

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.