Description

3-Bromo-5-(Ethylcarbonyl)-2-Methylthiophene is a high-purity, specialized heterocyclic building block of significant importance in advanced organic synthesis. Its core value lies in its functionalized thiophene scaffold, which serves as a versatile precursor for the development of complex molecules, particularly in material science and pharmaceutical research. This compound is essential for R&D chemists and process development scientists working in agrochemical, pharmaceutical, and organic electronic applications, where precise molecular architecture is critical.

Application

• Pharmaceutical Intermediate: A key synthon for the construction of novel active pharmaceutical ingredients (APIs), especially those targeting central nervous system (CNS) disorders or possessing anti-inflammatory properties.
• Agrochemical Synthesis: Used in the research and development of new generation herbicides, fungicides, and insecticides, leveraging the bioactivity of the thiophene moiety.
• Organic Semiconductor Precursor: Serves as a fundamental building block for π-conjugated systems in organic field-effect transistors (OFETs), organic photovoltaics (OPVs), and light-emitting diodes (OLEDs).
• Ligand and Catalyst Development: Employed in the synthesis of specialized ligands for transition metal catalysis, facilitating novel cross-coupling and other catalytic reactions.
• Material Science Research: Utilized in creating novel polymers and small molecules with tailored electronic or optical properties for advanced material applications.
• Chemical Reference Standard: Supplied as a high-purity standard for analytical method development, quality control, and regulatory submissions.

Basic Information

Product Name	3-Bromo-5-(Ethylcarbonyl)-2-Methylthiophene
CAS No.	887576-01-4
Molecular Formula	C8H9BrOS
Molecular Weight	233.12 g/mol
Synonyms	3-Bromo-2-methyl-5-propionylthiophene; 1-(3-Bromo-2-methylthiophen-5-yl)propan-1-one; 3-Bromo-5-propionyl-2-methylthiophene; 5-Acetyl-3-bromo-2-methylthiophene (common misnomer); Thiophene, 3-bromo-5-(1-oxopropyl)-2-methyl-; Ethyl 3-bromo-2-methylthiophen-5-yl ketone
EINECS	Contact for details

Quality Control

Every batch of 3-Bromo-5-(Ethylcarbonyl)-2-Methylthiophene is manufactured under strict quality management systems and undergoes rigorous analytical testing to ensure identity, purity, and consistency. Our products are developed to meet the stringent requirements of research and process chemistry. A comprehensive Certificate of Analysis (COA) detailing purity (typically ≥95% to ≥98% by HPLC), identity confirmation, and impurity profile 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, and well-ventilated place at a controlled room temperature (15-25°C). Keep the container tightly sealed to protect from moisture. Store away from incompatible materials such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0% (Standard Grade) ≥ 98.0% (High Purity Grade)
Melting Point	Contact for details
Water Content (KF)	< 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.