Description

3-Methyl-6,7-Dihydrobenzo[B]Thiophen-4(5H)-One is a versatile heterocyclic building block and key synthetic intermediate in advanced organic chemistry. This compound matters for its role in constructing complex molecular architectures, particularly in the development of novel active pharmaceutical ingredients (APIs) and high-performance materials. It is primarily needed by research chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries for creating new compounds with targeted properties.

Application

• Pharmaceutical Intermediate: A critical 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, leveraging its fused thiophene ring system.
• Material Science Research: Serves as a building block for organic electronic materials, such as semiconductors and conductive polymers, due to its electron-rich thiophene core.
• Ligand and Catalyst Development: Employed in the creation of novel ligands for metal-catalyzed reactions and organocatalysts for asymmetric synthesis.
• Dye and Pigment Intermediate: Acts as a key component in the synthesis of specialized dyes and organic pigments for high-value applications.
• Academic & Contract Research: A valuable reagent for methodological studies and the exploration of new synthetic pathways in university and CRO laboratories.

Basic Information

Product Name	3-Methyl-6,7-Dihydrobenzo[B]Thiophen-4(5H)-One
CAS No.	33449-56-8
Molecular Formula	C9H10OS
Molecular Weight	166.24 g/mol
Synonyms	3-Methyl-4,5,6,7-tetrahydro-1-benzothiophen-4-one; 3-Methyl-4,5,6,7-tetrahydrobenzo[b]thiophen-4-one; 4(5H)-Benzothiophenone, 6,7-dihydro-3-methyl-; 3-Methyl-4-oxo-4,5,6,7-tetrahydro-1-benzothiophene; 3-Methyl-4,5,6,7-tetrahydro-1-benzothiophene-4-one
EINECS	Contact for details

Quality Control

Our 3-Methyl-6,7-Dihydrobenzo[B]Thiophen-4(5H)-One is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high purity and consistent performance for your synthetic applications. Certificates of Analysis (COA) with full specification data are provided and available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. 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
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.