Description

5,6-Dihydro-6-Methyl-4-Oxo-4H-Thieno[2,3-B]Thiopyran-2-Sulfonic Acid is a specialized sulfonic acid derivative featuring a fused thienothiopyran ring system, making it a valuable synthetic intermediate and building block in advanced organic chemistry. Its unique heterocyclic structure with a sulfonic acid group is critical for imparting specific solubility, acidity, and binding properties in complex molecular architectures. This compound is primarily utilized by research and development chemists in the pharmaceutical and agrochemical industries for the synthesis of novel active ingredients.

Application

• Pharmaceutical Intermediate: A key building block in the research and synthesis of novel drug candidates, particularly those targeting specific enzyme interactions.
• Agrochemical Synthesis: Used in the development of new herbicides, fungicides, or insecticides where the thienothiopyran scaffold contributes to biological activity.
• Chemical Research & Development: Serves as a versatile precursor for creating complex heterocyclic compounds in academic and industrial research settings.
• Material Science: Potential use in the synthesis of specialty polymers or organic electronic materials due to its conjugated system and sulfonic acid functionality.
• Dye & Pigment Intermediate: Can be employed in the synthesis of specialized dyes or pigments where the sulfur-containing heterocycle alters color and stability properties.

Basic Information

Item	Detail
Product Name	5,6-Dihydro-6-Methyl-4-Oxo-4H-Thieno[2,3-B]Thiopyran-2-Sulfonic Acid
CAS No.	120279-86-9
Molecular Formula	C9H8O4S3
Molecular Weight	276.36 g/mol
Synonyms	6-Methyl-4-oxo-4H,5H-thieno[2,3-b]thiopyran-2-sulfonic acid; Thieno[2,3-b]thiopyran-2-sulfonic acid, 5,6-dihydro-6-methyl-4-oxo-; 2-Thienothiopyran-2-sulfonic acid derivative; 6-Methyl-4-oxothieno[2,3-b]thiopyran-2-sulfonic acid; 5,6-Dihydro-6-methyl-4-oxo-4H-thieno[2,3-b]thiopyran-2-sulfonate
EINECS	Contact for details

Quality Control

Our 5,6-Dihydro-6-Methyl-4-Oxo-4H-Thieno[2,3-B]Thiopyran-2-Sulfonic Acid is produced under strict quality management protocols. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key parameters such as assay (HPLC), related substances, and residual solvents are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent degradation. Keep away from incompatible materials such as strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Related Substances (HPLC)	Total impurities ≤ 3.0%
Loss on Drying	≤ 2.0%
Residual Solvents (GC)	Meets ICH guidelines

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