4-Aminodiphenyamine-2-sulfonic Acid (CAS 91-30-5): Technical Overview
Table of Contents
1. Basic Information & Comparative Analysis
| Parameter | Specification |
|---|---|
| Chemical Name | 4-Aminodiphenyamine-2-sulfonic acid |
| CAS Number | 91-30-5 |
| Alternative Names | 5-amino-2-anilinobenzenesulfonic acid, 6-Anilinometanilic acid, N-Phenyl-p-phenylenediaminesulfonic acid |
| Molecular Formula | C12H12N2O3S |
2. Key Applications
This specialized aromatic sulfonic acid derivative serves as:
- Intermediate in synthesis of dyes and pigments
- Building block for advanced polymer materials
- Functional component in corrosion inhibition formulations
3. Synthesis Methods
Primary industrial synthesis route:
- Starting material: 4-Nitrosodiphenylamine
- Sulfonation reaction under controlled acidic conditions
- Catalytic reduction of nitroso group to amine
- Purification through crystallization
Alternative synthetic pathways require specialized catalysts and controlled reaction environments.
Technical Inquiries
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