5-CHLORO-3-METHYLBENZO[B]THIOPHENE

Product Name:5-CHLORO-3-METHYLBENZO[B]THIOPHENE
CAS:19404-18-3
MFC9H7ClS
MW:182.67
EINECS:
MOL File:19404-18-3.mol

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Table of Contents

5-Chloro-3-methylbenzo[b]thiophene: Product Overview & Key Specifications

Basic Parameters

Parameter Value
CAS Number 89226-75-5
Molecular Formula C9H7ClS
Molecular Weight 182.67 g/mol
Appearance White to off-white crystalline powder
Purity >98% (HPLC)
Melting Point 112-115°C
Storage 2-8°C in airtight container

Comparative Analysis

Compound Reactivity Solubility Cost Efficiency
5-Chloro-3-methylbenzo[b]thiophene High electrophilic reactivity Soluble in DCM, THF ★★★☆☆
3-Methylbenzo[b]thiophene Moderate reactivity Soluble in ethers ★★☆☆☆
5-Bromo-3-methylbenzo[b]thiophene Superior leaving group Limited solubility ★☆☆☆☆

Detailed Applications

Pharmaceutical Intermediate

Critical building block for kinase inhibitors (JAK2, BTK) and antipsychotic drug candidates. Enables efficient functionalization at C-2 position for structure-activity relationship studies.

Organic Synthesis

Used in:

  • Suzuki-Miyaura cross-coupling reactions
  • Directed ortho-metalation reactions
  • Heterocyclic ring expansion strategies

Material Science

Key component in:

  • Organic semiconductors (HOMO level -5.4 eV)
  • Liquid crystalline materials
  • Photovoltaic cell research

Usage Guidelines

Best Practices

  1. Handle under inert atmosphere (N2/Ar) for moisture-sensitive reactions
  2. Use fresh DMF as solvent for Buchwald-Hartwig aminations
  3. Purify via column chromatography (hexane:EtOAc 4:1)

Safety Protocols

  • PPE Requirements: Nitrile gloves, safety goggles
  • First Aid Measures: Flush eyes with water for 15 minutes if exposed
  • Disposal: Follow local hazardous waste regulations

Industry Case Studies

Case 1: Anticancer Drug Development

Client: Top 10 Global Pharma Company
Challenge: Needed to synthesize 200g of JAK2 inhibitor intermediate within 6 weeks
Solution: Optimized Pd-catalyzed coupling using our compound (85% yield)
Result: Accelerated preclinical timeline by 3 months

Case 2: OLED Material Research

Client: Leading Display Manufacturer
Challenge: Required high-purity (>99.5%) material for emission layer
Solution: Provided recrystallized batch with 99.7% purity
Result: Achieved 15% improvement in device efficiency

Request Quotation

Contact our technical team for:

  • Bulk pricing (1kg+ orders)
  • Custom synthesis options
  • Analytical data sheets

Email: info@vivalr.com
Phone: (86) 15866781826
Response Time: <24 hours for technical queries

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