4-Aminophenylarsonic acid
Pharmaceutical Materials 2025-03-02
CAS Number: 897-06-3
Molecular Formula: C19H24O2
Molecular Weight: 284.39 g/mol
Appearance: White crystalline powder
Melting Point: 138-139 °C
Boiling Point: 434.2 °C
Usage: Used as an intermediate in steroid hormone synthesis.
| Property | Details |
|---|---|
| Chemical Name | 4-Aminophenylarsonic Acid |
| Synonyms | p-Aminobenzenearsonic Acid, Arsanilic Acid, 4-Aminophenylarsine Acid |
| CAS Number | 98-50-0 |
| EINECS Number | 202-674-3 |
| Molecular Formula | C₆H₈AsNO₃ |
| Molecular Weight | 217.05 g/mol |
| Physical State | White or light yellow crystalline powder |
| Melting Point | ≥300°C (lit.) |
| Boiling Point | 528.5±52.0°C (Predicted) |
| Solubility | Sparingly soluble in water; soluble in concentrated mineral acids, alkali carbonate solutions, alcohol, and diethyl ether. Practically insoluble in acetone, benzene, and chloroform. |
| Applications | – Antibacterial agent in livestock feed (promotes growth, prevents diarrhea in young animals). – Used in veterinary medicine for treating bacterial infections. – Acts as a feed additive to improve feed efficiency and accelerate skeletal growth in pigs and chickens. |
| Health & Safety | – Toxic; classified as a hazardous substance (T, N). – Acute toxicity: LD₅₀ (oral, rats) >1000 mg/kg; LD₅₀ (intraperitoneal, mice) 500 mg/kg. – Requires proper storage and handling to prevent environmental contamination. |
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