Description

1-(4-Bromo-5-Chloro-2-Thienyl)-2-Chloroethan-1-One is a high-purity, multi-halogenated thiophene derivative serving as a critical synthetic intermediate. This compound is valued for its reactive α-chloroketone and halogenated thiophene moieties, enabling precise molecular construction in advanced chemical synthesis. It is primarily sought by R&D chemists and process developers in the pharmaceutical and agrochemical industries for creating novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly in heterocyclic chemistry.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and insecticides.
• Material Science Research: Serves as a precursor for functional polymers and advanced organic electronic materials.
• Chemical Biology Probes: Utilized in the development of molecular probes and labeling agents due to its reactive sites.
• Custom Synthesis & Contract Manufacturing: A vital starting material for custom synthesis projects requiring complex, halogenated scaffolds.

Basic Information

Product Name	1-(4-Bromo-5-Chloro-2-Thienyl)-2-Chloroethan-1-One
CAS No.	306935-99-9
Molecular Formula	C6H3BrCl2OS
Molecular Weight	274.96 g/mol
Synonyms	2-Chloro-1-(4-bromo-5-chloro-2-thienyl)ethanone; 4-Bromo-5-chloro-2-thienyl chloromethyl ketone; 2-Chloro-1-(4-bromo-5-chlorothiophen-2-yl)ethan-1-one; α-Chloro-4-bromo-5-chlorothienyl ketone; 4-Bromo-5-chloro-2-acetylthiophene, α-chloro derivative; 1-(4-Bromo-5-chloro-2-thienyl)-2-chloroethanone; 306935-99-9 (CAS Name)
EINECS	Contact for details

Quality Control

Our 1-(4-Bromo-5-Chloro-2-Thienyl)-2-Chloroethan-1-One is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation by NMR and IR spectroscopy, to ensure it meets the high standards required for research and process chemistry. Certificates of Analysis (COA) documenting all critical parameters are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at controlled room temperature (15-25°C). Keep away from strong bases and reducing agents. This material is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
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.