Description

2-Thiophenecarbonylchloride,5-(Methylthio)-(9Ci) is a specialized organosulfur building block featuring a reactive acid chloride group and a methylthio substituent on the thiophene ring. This compound matters for its role as a key synthetic intermediate, enabling the efficient introduction of the 5-(methylthio)-2-thiophenecarbonyl moiety into more complex molecular architectures. It is primarily needed by research chemists and process development scientists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients and advanced materials.

Application

• Pharmaceutical Intermediate: Serves as a crucial building block for the synthesis of novel drug candidates, particularly in medicinal chemistry programs targeting various therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and fungicides, leveraging the thiophene scaffold for bioactivity.
• Material Science Research: Acts as a monomer or precursor for conducting polymers, organic semiconductors, and advanced organic electronic materials.
• Chemical Research & Development: Employed in academic and industrial R&D labs for method development and the creation of complex, sulfur-containing heterocyclic compounds.
• Ligand and Catalyst Preparation: Useful for synthesizing specialized ligands for metal catalysis or functionalizing surfaces and polymers.

Basic Information

Product Name	2-Thiophenecarbonylchloride,5-(Methylthio)-(9Ci)
CAS No.	135080-21-6
Molecular Formula	C7H5ClOS2
Molecular Weight	204.70 g/mol
Synonyms	5-(Methylthio)thiophene-2-carbonyl chloride; 5-Methylsulfanylthiophene-2-carbonyl chloride; 2-Thenoyl chloride, 5-(methylthio)-; 5-(Methylthio)-2-thiophenecarboxylic acid chloride; 5-(Methylthio)thiophene-2-carboxylic acid chloride; 5-Methylmercapto-2-thiophenecarbonyl chloride; 5-(Methylthio)-2-thienoyl chloride
EINECS	Contact for details

Quality Control

Every batch of 2-Thiophenecarbonylchloride,5-(Methylthio)-(9Ci) is produced and analyzed under strict quality management protocols. We ensure high purity and batch-to-batch consistency through advanced analytical techniques including HPLC, GC, and NMR. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic and moisture-sensitive nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening. Keep away from strong acids, bases, and oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid or solid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Water Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.