Description

8-Methyl-3,4-Dihydro-4-Oxo-2H-1-Benzothiopyran 1,1-Dioxide is a high-purity, specialized organic intermediate featuring a benzothiopyran dioxide core structure. This compound is valued for its role as a critical building block in advanced pharmaceutical synthesis and fine chemical research. It is primarily sought by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries for constructing complex molecular architectures.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel therapeutic agents, particularly those targeting central nervous system (CNS) disorders and inflammatory pathways.
• Agrochemical Research: Used in the development of new active ingredients for crop protection products, leveraging its heterocyclic scaffold.
• Material Science: Serves as a monomer or functional additive in the research of advanced polymers and organic electronic materials.
• Chemical Synthesis: Employed as a versatile synthon in academic and industrial organic chemistry for constructing fused ring systems and sulfone-containing compounds.
• Dye & Pigment Intermediate: Acts as a starting material for synthesizing specialized chromophores and functional dyes.

Basic Information

Product Name	8-Methyl-3,4-dihydro-4-oxo-2H-1-benzothiopyran 1,1-dioxide
CAS No.	16723-54-9
Molecular Formula	C10H10O3S
Molecular Weight	210.25 g/mol
Synonyms	8-Methyl-2H-1-benzothiopyran-4(3H)-one 1,1-dioxide; 8-Methyl-3,4-dihydro-4-oxo-1-benzothiopyran 1,1-dioxide; 8-Methyl-4-oxo-3,4-dihydro-2H-1-benzothiopyran 1,1-dioxide; 8-Methyl-4-chromanone 1,1-dioxide; 8-Methyl-4-thiochromanone 1,1-dioxide; 8-Methyl-4-oxothiochroman 1,1-dioxide
EINECS	Contact for details

Quality Control

Our 8-Methyl-3,4-Dihydro-4-Oxo-2H-1-Benzothiopyran 1,1-Dioxide is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC, NMR, and MS, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with each shipment. We support cGMP standards for pharmaceutical applications upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong oxidizing agents and strong bases. For long-term storage, consider an inert atmosphere to maintain optimal purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Single Unknown Impurity (HPLC)	≤ 0.5%
Total Impurities (HPLC)	≤ 2.0%

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