Description

Thiophene, 2-Ethylidenetetrahydro-, 1,1-Dioxide (9Ci) is a specialized heterocyclic sulfone compound, identified by CAS NO 343929-35-1, valued for its unique chemical structure that serves as a versatile building block in advanced organic synthesis. This compound is critical for research and development chemists seeking to introduce functionalized thiophene motifs into complex molecular architectures. It is primarily utilized in the pharmaceutical and agrochemical industries for the development of novel active ingredients and in materials science for creating specialty polymers and electronic materials.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of new drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Used in the creation of novel herbicides, fungicides, and insecticides, leveraging its heterocyclic core for bioactivity.
• Materials Science Research: Serves as a precursor for conductive polymers, organic semiconductors, and other advanced electronic materials due to the thiophene backbone.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for constructing complex heterocyclic compounds and fine chemicals.
• Ligand and Catalyst Development: Utilized in the design of novel ligands for metal-catalyzed reactions and organocatalysts.

Basic Information

Item	Details
Product Name	Thiophene, 2-Ethylidenetetrahydro-, 1,1-Dioxide (9Ci)
CAS No.	343929-35-1
Molecular Formula	C6H8O2S
Molecular Weight	144.19 g/mol
Synonyms	2-Ethylidenetetrahydrothiophene 1,1-Dioxide; 2-Ethylidene-1,1-dioxotetrahydrothiophene; 3,4-Dihydro-2H-thiophene 1,1-dioxide, 2-ethylidene-; Tetrahydro-2-ethylidenethiophene 1,1-dioxide; 2-Ethylidenetetrahydrothiophene Sulfone
EINECS	Contact for details

Quality Control

Our Thiophene, 2-Ethylidenetetrahydro-, 1,1-Dioxide (9Ci) is produced under stringent quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, NMR, and mass spectrometry, to ensure high purity and batch-to-batch consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment. We adhere to cGMP guidelines where applicable to support our clients in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (typically 15-25°C). Keep away from strong oxidizing agents and incompatible materials. For long-term storage, consider an inert atmosphere to maintain optimal stability.

Specification

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