Description

4H-Thieno[2,3-B]Thiopyran-4-One,5,6-Dihydro-6-Methyl-, 7,7-Dioxide, (6S) is a high-purity, stereochemically defined heterocyclic compound of significant interest in advanced organic synthesis. This compound matters as a sophisticated chiral building block, enabling the development of novel molecules with specific three-dimensional architectures. It is primarily needed by research and development teams in the pharmaceutical and agrochemical industries for creating new active ingredients, as well as by fine chemical manufacturers specializing in custom synthesis and process development.

Application

• Pharmaceutical Intermediate: Serves as a key chiral synthon in the research and development of new drug candidates, particularly for central nervous system (CNS) and anti-infective agents.
• Agrochemical Synthesis: Used in the development of novel, high-performance pesticides and herbicides where specific stereochemistry is crucial for biological activity.
• Material Science Research: Investigated as a precursor for novel organic electronic materials or liquid crystals due to its fused heterocyclic structure.
• Asymmetric Catalysis: Employed as a ligand precursor or a chiral scaffold in the development of new catalysts for enantioselective transformations.
• Academic & Institutional Research: Utilized in university and corporate R&D labs for methodological studies in heterocyclic and sulfur chemistry.
• Custom Synthesis & Contract Manufacturing: A critical starting material for fine chemical companies offering bespoke synthesis services to the life sciences sector.

Basic Information

Product Name	4H-Thieno[2,3-B]Thiopyran-4-One,5,6-Dihydro-6-Methyl-, 7,7-Dioxide, (6S)
CAS No.	148719-91-9
Molecular Formula	C8H8O3S2
Molecular Weight	216.28 g/mol
Synonyms	(6S)-5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one 7,7-dioxide; (6S)-6-Methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-one 7,7-dioxide; (S)-6-Methyl-4H,5H,6H-thieno[2,3-b]thiopyran-4-one 7,7-dioxide; (6S)-6-Methyl-4H-thieno[2,3-b]thiopyran-4-one 7,7-dioxide; 148719-91-9; (S)-Enantiomer of the thienothiopyran dione derivative.
EINECS	Contact for details

Quality Control

Our 4H-Thieno[2,3-B]Thiopyran-4-One,5,6-Dihydro-6-Methyl-, 7,7-Dioxide, (6S) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including chiral purity assessment by HPLC, to ensure high chemical and enantiomeric purity suitable for demanding synthetic applications. Certificates of Analysis (COA) with detailed chromatographic data are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). The compound may be moisture-sensitive; keep the container tightly sealed when not in use.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Chiral Purity (Chiral HPLC)	≥ 99.0% ee
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.