Description

4H-Thiopyran-4-One is a versatile sulfur-containing heterocyclic compound that serves as a key synthetic intermediate in advanced organic chemistry. Its unique thiopyranone core structure makes it a valuable building block for the development of novel pharmaceuticals, agrochemicals, and functional materials. This high-purity intermediate is essential for research and development chemists and process engineers in the fine chemical, pharmaceutical, and material science industries seeking to create innovative sulfur-based molecules.

Application

• Pharmaceutical Intermediate: A crucial precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders and other therapeutic areas.
• Agrochemical Synthesis: Used in the research and development of new pesticides, herbicides, and fungicides where the thiopyranone scaffold imparts unique biological activity.
• Material Science Research: Serves as a monomer or precursor for developing advanced polymers, liquid crystals, and organic electronic materials with specific optoelectronic properties.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for constructing complex heterocyclic compounds, including fused ring systems and natural product analogs.
• Flavor & Fragrance Chemistry: Acts as an intermediate for synthesizing sulfur-containing aroma chemicals, contributing to complex scent profiles.
• Coordination Chemistry Ligand: Its structure allows it to function as a ligand for metal complexes in catalytic and materials applications.

Basic Information

Product Name	4H-Thiopyran-4-One
CAS No.	1003-41-4
Molecular Formula	C5H4OS
Molecular Weight	112.15 g/mol
Synonyms	4H-Thiopyran-4-one; 4-Thiopyranone; 4-Oxothiopyran; Thiopyran-4(4H)-one; 4H-Thiopyran-4-one, 4-Thiopyrone; γ-Thiopyrone; 1-Oxa-4-thiacyclohexa-2,5-dien-4-one
EINECS	213-704-8

Quality Control

Our 4H-Thiopyran-4-One is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot is accompanied by a comprehensive Certificate of Analysis (COA) detailing key parameters such as identity, assay, and impurity profiles. We adhere to relevant industry standards and can support development projects requiring specific analytical methodologies. Certificates of Analysis are available upon request for all shipments.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at 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
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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