4-Hydroxydiphenylamine
- CAS NO.：122-37-2
- Empirical Formula: C12H11NO
- Molecular Weight: 185.22
- MDL number: MFCD00020142
- EINECS: 204-538-9
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:16:39
What is 4-Hydroxydiphenylamine ?
The Uses of 4-Hydroxydiphenylamine
4-Hydroxydiphenylamine is used as a reactant in the preparation of iron methylisopropylglyoxime dimethylpyridine/dimethylaminopyridine/phenylaminophenol/imidazolidone complexes.
Definition
Gray solid leaflets. Insoluble in water; soluble in alcohol, ether, acetone, chloroform, alkali, and benzene.
Hazard
Irritant.
Safety Profile
Poison by intravenous route.Moderately toxic by ingestion. A severe eye irritant. Seealso AROMATIC AMINES. When heated todecomposition it emits toxic fumes of NOx.
Purification Methods
Crystallise the amine from chlorobenzene/pet ether, pentane (m 72o) or *C6H6/pet ether (m 70o). [Beilstein 13 III 1019, 13 IV 1052.]
Properties of 4-Hydroxydiphenylamine
| Melting point: | 67-73°C |
| Boiling point: | 190°C |
| Density | 1.0936 (rough estimate) |
| refractive index | 1.5300 (estimate) |
| Flash point: | 209°C |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| form | powder to lump |
| pka | 10.46±0.13(Predicted) |
| color | Gray, solid leaflets |
| BRN | 511942 |
| CAS DataBase Reference | 122-37-2(CAS DataBase Reference) |
| NIST Chemistry Reference | Phenol, 4-(phenylamino)-(122-37-2) |
| EPA Substance Registry System | Phenol, 4-(phenylamino)- (122-37-2) |
Safety information for 4-Hydroxydiphenylamine
| Signal word | Warning |
| Pictogram(s) |
 Corrosion Corrosives GHS05  Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H303:Acute toxicity,oral H315:Skin corrosion/irritation H318:Serious eye damage/eye irritation H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. 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. |
Computed Descriptors for 4-Hydroxydiphenylamine
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