Description

2,3-Dihydro-3-Methyl-4H-1-Benzothiopyran-4-One is a high-purity organic sulfur heterocycle, serving as a critical synthetic intermediate and building block in advanced chemical synthesis. Its value lies in its unique fused benzothiopyranone structure, which is essential for constructing complex molecules with specific biological and material properties. This compound is primarily needed by research institutions and manufacturers in the pharmaceutical, agrochemical, and material science industries for developing novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel therapeutic agents, particularly in developing compounds with potential central nervous system (CNS) or anti-inflammatory activity.
• Agrochemical Research: Used in creating new active ingredients for crop protection products, leveraging its heterocyclic core for bioactivity.
• Material Science Precursor: Serves as a monomer or precursor in the development of advanced organic electronic materials and specialty polymers.
• Chemical Synthesis: A versatile synthon in organic chemistry for constructing complex sulfur-containing heterocycles and fused ring systems.
• Research & Development: Essential for academic and industrial R&D in medicinal chemistry and synthetic methodology development.
• Dye & Pigment Intermediate: Potential use in synthesizing specialized sulfur-based dyes and colorants.

Basic Information

Product Name	2,3-Dihydro-3-Methyl-4H-1-Benzothiopyran-4-One
CAS No.	771-17-5
Molecular Formula	C10H10OS
Molecular Weight	178.25 g/mol
Synonyms	3-Methyl-2,3-dihydro-1-benzothiopyran-4-one; 3-Methyl-2,3-dihydro-4H-1-benzothiopyran-4-one; 3-Methylchroman-4-thione; 3-Methylthiochroman-4-one; 4H-1-Benzothiopyran-4-one, 2,3-dihydro-3-methyl-; Benzothiopyranone derivative; Thiocoumarin derivative
EINECS	Contact for details

Quality Control

Our 2,3-Dihydro-3-Methyl-4H-1-Benzothiopyran-4-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the high standards required for research and industrial synthesis. A comprehensive Certificate of Analysis (COA) detailing all specifications is provided with every shipment and is available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from heat, sparks, and open flame. Due to its light-sensitive nature, the container should be opaque or stored in darkness.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
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.