Metanilic Acid (CAS 121-47-1): Comprehensive Technical Overview
1. Basic Information & Specifications
| Chemical Name | 3-Aminobenzenesulfonic Acid |
|---|---|
| CAS Number | 121-47-1 |
| Molecular Formula | C6H7NO3S |
| Molecular Weight | 173.19 g/mol |
| Appearance | White crystalline solid |
| Solubility | Water-soluble, slightly soluble in ethanol/ether |
| Decomposition Point | Undergoes thermal decomposition without distinct melting point |
2. Industrial Applications
- Dye Manufacturing: Key intermediate for acid dyes (e.g., Weak Acid Deep Blue 5R), reactive dyes (e.g., Active Bright Orange K-G series), and sulfur dyes
- Pharmaceuticals: Precursor in anticancer drug synthesis and diagnostic imaging agents
- Agrochemicals: Intermediate for pesticide formulations
- Specialty Chemicals: Production of vanillin (food flavoring) and 3-aminophenol
- Photography: Component in photographic developers
3. Safety & Handling
| Hazard Class | Stimulant (Category 2) |
|---|---|
| Exposure Risks | Respiratory irritation, eye/skin irritation |
| Fire Hazard | Combustible (emits toxic NOx/SOx gases when heated) |
| Environmental Impact | Aquatic toxicity (LC50 fish: 10-100 mg/L) |
| PPE Requirements | Chemical goggles, nitrile gloves, respirator (dust handling) |
4. Verified Suppliers
- Hubei Peizi Pharmaceutical Technology Co., Ltd.
Contact: Gong (Sales Manager)
Tel: +86 177-2047-2265
Email: 2195228001@qq.com - Hubei Meibei New Material Co., Ltd.
Contact: Liu Qin (Technical Specialist)
Tel: +86 134-7609-8104
Email: 917856497@qq.com
5. Ordering & Technical Support
For pricing, technical specifications, or MSDS requests:
- Email: info@vivalr.com
- Tel: +86 158-6678-1826
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