Description

5-Fluoro-3-Methylbenzo[B]Thiophene is a high-purity fluorinated heterocyclic building block essential for advanced organic synthesis. This compound serves as a critical intermediate in the development of novel pharmaceuticals and agrochemicals, where its unique molecular scaffold enables the creation of complex, bioactive molecules. It is primarily required by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and material science industries.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of active pharmaceutical ingredients (APIs), particularly for central nervous system (CNS) and oncology targets.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides, leveraging the bioactivity of the benzothiophene core.
• Material Science: Serves as a monomer or functional additive in the research of organic semiconductors, liquid crystals, and advanced polymers.
• Chemical Synthesis: Acts as a versatile fluorinated building block for Suzuki, Stille, and other cross-coupling reactions to create complex aromatic systems.
• Dye & Pigment Industry: Employed in the research and synthesis of specialized fluorophores and functional dyes.

Basic Information

Product Name	5-Fluoro-3-Methylbenzo[B]Thiophene
CAS No.	17514-63-5
Molecular Formula	C9H7FS
Molecular Weight	166.22 g/mol
Synonyms	3-Methyl-5-fluorobenzo[b]thiophene; 5-Fluoro-3-methyl-1-benzothiophene; Benzo[b]thiophene, 5-fluoro-3-methyl-; 5-Fluoro-3-methylbenzo[b]thiophene; 5-Fluoro-3-methyl-1-benzothiophene
EINECS	Contact for details

Quality Control

Our 5-Fluoro-3-Methylbenzo[B]Thiophene is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC, GC, NMR, and mass spectrometry, to ensure identity, purity, and consistency. We provide a detailed Certificate of Analysis (COA) with every shipment, confirming compliance with customer specifications and industry standards.

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 oxidizing agents.

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.