1-Naphthylamine (CAS 134-32-7): Comprehensive Technical Guide
Table of Contents
1. Product Overview & Specifications
| Parameter | 1-Naphthylamine | Comparative Note |
|---|---|---|
| CAS No. | 134-32-7 | Unique identifier for regulatory compliance |
| Molecular Formula | C10H9N | Distinct from β-Naphthylamine isomers |
| Molecular Weight | 143.19 g/mol | Standard purity ≥99% (AR grade) |
| Physical State | White crystalline solid | Characteristic odor, sublimation tendency |
| Melting Point | 47-50°C | Lower than β-isomer (110°C) |
| Flash Point | 157°C | Combustible but non-flammable at RT |
| UN Number | 2077 | Classified under Hazard Class 6.1 |
2. Key Applications
- Analytical Chemistry: Fluorescent indicator in redox titrations
- Chromatography: Stationary phase for GC separation of aromatic compounds
- Dye Synthesis: Precursor for azo dyes (Direct Red 28, Acid Orange 20)
- Biochemical Research: Intermediate in enzyme activity studies
- Industrial Processes: Antioxidant in rubber manufacturing
3. Operational Guidelines
Handling Requirements:
- Use fume hoods for powder handling
- Maintain ambient temperature <30°C
- Incompatible with strong oxidizers (HNO3, H2O2)
Storage Conditions:
- Vacuum-sealed in amber glass containers
- Store at 2-8°C with desiccant
- Shelf life: 24 months unopened
4. Safety Protocols
| Hazard Type | Preventive Measures | Emergency Response |
|---|---|---|
| Acute Toxicity (Oral/Skin) | Nitrile gloves + Type B PPE | 15min saline flush for dermal contact |
| Carcinogenicity (IARC Group 3) | Annual medical surveillance | Urinalysis for hematuria detection |
| Aquatic Toxicity (LC50: 2.8mg/L) | Secondary containment required | Activated carbon absorption |
5. Client Case Studies
Case 1: Specialty Dye Manufacturer (Zhejiang, China)
- Application: Synthesis of heat-resistant textile dyes
- Result: 18% efficiency improvement vs. β-isomer
- Safety Outcome: Zero exposure incidents over 3 years
Case 2: Pharmaceutical Research Lab (Berlin, Germany)
- Application: Fluorescent tagging in cell studies
- Technical Support: Custom purity optimization (99.8%)
- Regulatory Compliance: Full REACH documentation
6. Contact for Technical Support
For SDS documentation, bulk pricing, or application guidance:
Email: info@vivalr.com
Tel: (86) 15866781826



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