4-Phenoxyaniline
Synonym(s):4-Aminophenyl phenyl ether
- CAS NO.：139-59-3
- Empirical Formula: C12H11NO
- Molecular Weight: 185.22
- MDL number: MFCD00007862
- EINECS: 205-367-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-04-24 14:58:33
What is 4-Phenoxyaniline?
Chemical properties
brown to green-brown crystalline flakes or powder
Safety Profile
Mutation data reported. A skin and eye irritant. When heated to decomposition it emits toxic fumes of NOx.
Purification Methods
Crystallise 4-phenoxyaniline from water. [Beilstein 13 IV 1020.]
Properties of 4-Phenoxyaniline
| Melting point: | 82-84 °C(lit.) |
| Boiling point: | 140 °C (2.2503 mmHg) |
| Density | 1.0936 (rough estimate) |
| refractive index | 1.5300 (estimate) |
| pka | 4.75±0.10(Predicted) |
| form | Crystalline Flakes or Powder |
| color | Brown to green-brown |
| Water Solubility | < 1 g/L (20 ºC) |
| BRN | 777708 |
| CAS DataBase Reference | 139-59-3(CAS DataBase Reference) |
| NIST Chemistry Reference | Benzenamine, 4-phenoxy-(139-59-3) |
| EPA Substance Registry System | Benzenamine, 4-phenoxy- (139-59-3) |
Safety information for 4-Phenoxyaniline
| Signal word | Warning |
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H301:Acute toxicity,oral H302:Acute toxicity,oral H315:Skin corrosion/irritation H317:Sensitisation, Skin H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H341:Germ cell mutagenicity H400:Hazardous to the aquatic environment, acute hazard H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P201:Obtain special instructions before use. P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405:Store locked up. |
Computed Descriptors for 4-Phenoxyaniline
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