Description

5,6-Dihydro-4H-Thieno[2,3-B]Thiopyran-4-One is a high-value fused heterocyclic compound featuring a unique thienothiopyranone scaffold. This specialized structure makes it a critical advanced pharmaceutical intermediate and a versatile building block in organic synthesis. It is primarily utilized by R&D chemists and process development teams in the pharmaceutical, agrochemical, and material science industries for the development of novel active compounds.

Application

• Pharmaceutical Intermediate: Serves as a key precursor in the synthesis of complex drug candidates, particularly those targeting the central nervous system (CNS) and other therapeutic areas.
• Agrochemical Research: Used as a core scaffold for developing new pesticides and herbicides with novel modes of action.
• Organic Synthesis Building Block: Employed in constructing complex heterocyclic systems for material science and chemical research.
• Ligand and Catalyst Development: The sulfur-containing heterocycle can be functionalized to create novel ligands for catalysis or metal-organic frameworks (MOFs).
• Academic & Industrial R&D: Essential for exploratory chemistry in universities and corporate research laboratories focusing on medicinal and synthetic chemistry.

Basic Information

Product Name	5,6-Dihydro-4H-Thieno[2,3-B]Thiopyran-4-One
CAS No.	7675-04-9
Molecular Formula	C7H6OS2
Molecular Weight	170.25 g/mol
Synonyms	4H-Thieno[2,3-b]thiopyran-4-one, 5,6-dihydro-; 5,6-Dihydro-4H-thieno[2,3-b]thiopyran-4-one; Thieno[2,3-b]thiopyran-4(4H)-one, 5,6-dihydro-; 4-Oxo-4,5,6,7-tetrahydrothieno[2,3-b]thiopyran; 7675-04-9; Tetrahydrothienothiopyranone
EINECS	Contact for details

Quality Control

Our production of 5,6-Dihydro-4H-Thieno[2,3-B]Thiopyran-4-One adheres to stringent quality protocols to ensure batch-to-batch consistency and high purity for research and development applications. All materials are characterized by modern analytical techniques including HPLC, GC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory documentation needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its sensitivity to light and potential for oxidation, it is recommended to store the material under an inert atmosphere (e.g., nitrogen or argon) for long-term preservation. Keep away from heat and incompatible materials.

Specification

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