4-Chloroaniline CAS：106-47-8
Dyeing and Pigments 2025-03-02
Chemical Identification
Chemical Name: 4-Chloroaniline
Synonyms: p-Chloroaniline, PCA
CAS No.: 106-47-8
Molecular Formula: C₆H₆ClN
Molecular Weight: 127.57 g/mol
Assay: ≥99.0%
Appearance: Colorless to light yellow crystalline solid
Physical & Chemical Properties
| Parameter | Specification |
|---|---|
| Purity (GC) | ≥99.0% |
| Melting Point | 72.5°C |
| Boiling Point | 232°C |
| Vapor Pressure | 0.0036 kPa (25°C) |
| Explosive Limits | 2.2%~8.8% (in air) |
| Density (20°C) | 1.427 g/cm³ |
| Water Solubility | Slightly soluble (0.3 g/100 mL) |
Applications
- Dye Intermediate:
- Production of azo dyes and Chromophenol AS-LB
- Pharmaceuticals:
- Raw material for Librium (anxiolytic drug) and Phenacetin
- Agrochemicals:
- Key intermediate for pesticides
- Specialty Chemicals:
- Used in color film manufacturing
Packaging & Shipping
- Standard: 25 kg/drum (HDPE with inner liner)
- Custom: Buyer-specified packaging available
Storage & Handling
- Storage Conditions:
- Store in a cool, dry, ventilated warehouse (<25°C)
- Relative humidity: <60%
- Safety Precautions:
- Separate from: Oxidizers, food additives
- Light-sensitive – use amber containers for long-term storage
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