PRODUCT Properties
| Melting point: | 190 °C (dec.) (lit.) |
| Boiling point: | 284.68°C (rough estimate) |
| Density | 1.1202 (rough estimate) |
| refractive index | 1.6070 (estimate) |
| storage temp. | -20°C Freezer |
| solubility | DMSO (Slightly), Methanol (Slightly) |
| form | Solid |
| pka | 3.97(at 25℃) |
| color | Light Purple to Purple |
| CAS DataBase Reference | 83-55-6(CAS DataBase Reference) |
| NIST Chemistry Reference | 5-Amino-1-naphthol(83-55-6) |
| EPA Substance Registry System | 1-Naphthalenol, 5-amino- (83-55-6) |
Description and Uses
5-Amino-1-naphthol is used as a coupling component for azo dyes (coupling takes place ortho to the amino or hydroxyl group, or para to the hydroxyl group depending on the pH), and as an intermediate for sulfur dyes.
Safety
| Symbol(GHS) |  GHS07 |
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P264-P271-P280-P302+P352-P305+P351+P338 |
| Hazard Codes | Xi |
| Risk Statements | 36/37/38 |
| Safety Statements | 26-37/39 |
| WGK Germany | 3 |
| HS Code | 29222990 |
