2-Aminotoluene-5-Sulfonic Acid (CAS 98-33-9) Comprehensive User Guide
Table of Contents
1. Product Overview & Specifications
| Parameter | 2-Aminotoluene-5-Sulfonic Acid | Comparable Sulfonic Acids |
|---|---|---|
| CAS Number | 98-33-9 | 121-57-3 (4-Aminobenzenesulfonic acid) |
| Molecular Formula | C7H9NO3S | C6H7NO3S |
| Appearance | Off-white crystalline powder | White crystalline powder |
| Solubility | Soluble in alkaline solutions | Soluble in hot water |
| Purity | ≥98% | ≥95% |
2. Key Applications & Industry Uses
Primary Applications:
- Dye Intermediate: Critical component in azo dye synthesis
- Pharmaceuticals: Precursor for sulfa drugs and specialty APIs
- Organic Synthesis: Building block for complex sulfonated compounds
3. Usage Guidelines & Best Practices
Handling Recommendations:
- Storage: Keep in airtight containers at 15-25°C
- Safety: Use PPE when handling concentrated forms
- Compatibility: Avoid strong oxidizing agents
4. Case Studies & Real-World Examples
Case Study 1: Textile Dye Manufacturer
- Client: European Specialty Chemicals Co.
- Challenge: Improve dye fastness in synthetic fabrics
- Solution: Optimized sulfonation process using 98-33-9
- Result: 22% increase in wash-fastness ratings
Case Study 2: Pharmaceutical Intermediate Supplier
- Client: Asia Pharma Solutions Ltd.
- Challenge: Reduce byproducts in sulfonamide synthesis
- Solution: Precision-controlled coupling reactions
- Result: 98.5% API purity achieved
5. Supplier & Purchasing Information
Why Choose Us:
- ISO 9001-certified production
- Custom particle size distributions
- Global logistics support
Contact for Technical Specifications:
Email: info@vivalr.com
Tel: (86) 15866781826
Request Quote:
Include:
– Required quantity
– Purity specifications
– Delivery timeline requirements



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