Table of Contents
- Product Overview & Key Specifications
- Detailed Applications
- Usage Guidelines
- Industry Case Studies
- Request Quotation
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
- Handle under inert atmosphere (N2/Ar) for moisture-sensitive reactions
- Use fresh DMF as solvent for Buchwald-Hartwig aminations
- 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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