Description

2-Thiophenecarbonyl Chloride, 3,5-Dimethyl- (9Ci) is a high-purity, functionalized heterocyclic acid chloride building block, essential for advanced organic synthesis. Its core value lies in enabling the efficient introduction of the 3,5-dimethylthiophene-2-carbonyl moiety, a key structural motif in the development of novel active compounds. This intermediate is critically needed by R&D and process development teams in the pharmaceutical, agrochemical, and material science industries for creating new molecules with targeted properties.

Application

• Pharmaceutical Intermediate: A key building block for the synthesis of novel active pharmaceutical ingredients (APIs), particularly in medicinal chemistry research for creating potential drug candidates.
• Agrochemical Synthesis: Used in the development of new herbicides, fungicides, and insecticides, where the thiophene scaffold can contribute to biological activity.
• Material Science & Organic Electronics: Serves as a precursor for monomers or functional units in conjugated polymers and small molecules for organic semiconductors, OLEDs, or sensors.
• Ligand & Catalyst Development: Employed in the preparation of specialized ligands for catalysis or as a functional handle in metal-organic frameworks (MOFs).
• Custom Synthesis & Contract Research: A valuable reagent for custom synthesis houses and CROs (Contract Research Organizations) working on client-specific molecular targets.
• Chemical Biology & Probe Development: Useful for labeling or modifying biomolecules in chemical biology research to study biological processes.

Basic Information

Item	Details
Product Name	2-Thiophenecarbonyl Chloride, 3,5-Dimethyl- (9Ci)
CAS No.	679806-34-9
Molecular Formula	C7H7ClOS
Molecular Weight	174.65 g/mol
Synonyms	3,5-Dimethylthiophene-2-carbonyl chloride; 3,5-Dimethyl-2-thiophenecarbonyl chloride; 3,5-Dimethylthiophene-2-carboxylic acid chloride; 3,5-Dimethyl-2-thienoyl chloride; 2-Thienoyl chloride, 3,5-dimethyl-; 3,5-Dimethyl-2-thiophenecarboxylic acid chloride; 3,5-Dimethylthiophene-2-carboxyl chloride
EINECS	Contact for details

Quality Control

Our 2-Thiophenecarbonyl Chloride, 3,5-Dimethyl- (9Ci) is produced under strict quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC, GC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all critical specifications. Our quality systems are designed to support cGMP and ISO standards for research and development applications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at a controlled room temperature (typically 15-25°C). This compound is hygroscopic (moisture-sensitive) and reacts with water; ensure containers are sealed under an inert atmosphere (e.g., nitrogen or argon) after opening. Keep away from strong bases, alcohols, and oxidizing agents.

Specification

Item	Specification
Appearance	Clear, colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC/GC)	≥ 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.