Description

3,4-Dihydro-1H-2-Benzothiopyran 2,2-Dioxide is a specialized heterocyclic sulfone compound of significant interest in advanced organic synthesis. This high-purity intermediate is valued for its unique structural framework, which serves as a critical building block for the development of novel active pharmaceutical ingredients (APIs) and functional materials. It is primarily utilized by research institutions and industrial manufacturers in the pharmaceutical, agrochemical, and material science sectors for process development and scale-up activities.

Application

• Pharmaceutical Intermediate: A key synthon in the research and production of novel therapeutic agents, particularly those targeting central nervous system (CNS) disorders.
• Agrochemical Synthesis: Used in the development of new-generation pesticides and herbicides, leveraging its sulfone moiety for bioactivity.
• Material Science Precursor: Serves as a monomer or building block for synthesizing specialty polymers and advanced organic electronic materials.
• Organic Synthesis Reagent: Employed in academic and industrial R&D for constructing complex heterocyclic systems via ring-closure and functionalization reactions.
• Ligand & Catalyst Development: Its structure is explored for creating novel chiral ligands and organocatalysts used in asymmetric synthesis.
• Chemical Research Standard: Used as a reference standard in analytical method development and quality control laboratories.

Basic Information

Product Name	3,4-Dihydro-1H-2-Benzothiopyran 2,2-Dioxide
CAS No.	18436-01-6
Molecular Formula	C9H10O2S
Molecular Weight	182.24 g/mol
Synonyms	1,2,3,4-Tetrahydro-2-benzothiopyran 2,2-Dioxide; 2,3-Dihydro-1-benzothiopyran 2,2-Dioxide; 3,4-Dihydro-2H-1-benzothiopyran 1,1-Dioxide; 2,2-Dioxo-2,3-dihydro-1-benzothiopyran; 1,2,3,4-Tetrahydrobenzo[c]thiophene 2,2-Dioxide; Tetrahydrobenzo[c]thiophene 2,2-Dioxide; 3,4-Dihydro-1H-2-benzothiopyran-2,2-dione (common misnomer)
EINECS	Contact for details

Quality Control

Our 3,4-Dihydro-1H-2-Benzothiopyran 2,2-Dioxide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and structural identity. Certificates of Analysis (COA) with detailed specifications are provided for every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). Keep away from strong oxidizing agents and incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
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.