Description

3-Thiophenecarbonyl Chloride, Tetrahydro-, 1,1-Dioxide (7Ci) is a specialized, high-purity sulfolane-based acid chloride derivative, serving as a critical building block in advanced organic synthesis. Its value lies in its unique reactivity, enabling the efficient introduction of the tetrahydrothiophene-1,1-dioxide moiety into target molecules, which is pivotal for modifying physicochemical properties. This compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and material science industries who require precise and reliable intermediates for developing novel active ingredients and functional materials. CAS number 89463-78-5.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of sulfolane-containing drug candidates, particularly in central nervous system (CNS) and cardiovascular therapeutics.
• Agrochemical Synthesis: Used in creating novel herbicides, fungicides, and insecticides where the sulfone group enhances biological activity and environmental stability.
• Polymer & Material Science: Serves as a monomer or cross-linking agent for producing specialty polymers with enhanced thermal stability, solubility, or ionic conductivity.
• Ligand & Catalyst Development: Employed in the preparation of specialized ligands for transition metal catalysis, facilitating challenging coupling reactions.
• Chemical Research & Development: A versatile reagent in academic and industrial R&D for exploring new synthetic pathways and creating compound libraries.
• Electronic Chemicals: Potential precursor in the synthesis of organic semiconductors or electrolyte additives for energy storage devices.

Basic Information

Item	Details
Product Name	3-Thiophenecarbonyl Chloride, Tetrahydro-, 1,1-Dioxide (7Ci)
CAS No.	89463-78-5
Molecular Formula	C5H7ClO3S
Molecular Weight	182.62 g/mol
Synonyms	3-(Chlorocarbonyl)tetrahydrothiophene 1,1-Dioxide; Tetrahydro-3-thiophenecarbonyl chloride 1,1-Dioxide; 3-Carboxyethylsulfonyl chloride (cyclic); Sulfolane-3-carbonyl chloride; 3-Thiophenecarboxylic acid, tetrahydro-, 1,1-dioxide, chloride; NSC 339063
EINECS	Contact for details

Quality Control

Our production of 3-Thiophenecarbonyl Chloride, Tetrahydro-, 1,1-Dioxide adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC, NMR, and titration methods, to confirm identity, potency, and impurity profiles. Certificates of Analysis (COA) documenting all critical quality attributes are provided and can be tailored to meet specific customer or 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, containers must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent hydrolysis. Keep away from strong bases, oxidizing agents, and sources of ignition.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Individual Unknown Impurity	≤ 0.5%

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