PRODUCT Properties
| Melting point: | 216°C |
| Boiling point: | 386.09°C (rough estimate) |
| Density | 1.2985 (rough estimate) |
| refractive index | 1.5700 (estimate) |
| form | powder to crystal |
| color | Light yellow to Amber to Dark green |
| Water Solubility | 3.892mg/L(25 ºC) |
| EPA Substance Registry System | 4-[(4-Nitrophenyl)azo]phenol (1435-60-5) |
Safety
| Symbol(GHS) | ![]() GHS07 |
| Signal word | Warning |
| Hazard statements | H319 |
| Precautionary statements | P264-P280-P305+P351+P338-P337+P313P |
| HS Code | 2927.00.5000 |




![18-Crown-5 [4-(2,4-Dinitrophenylazo)phenol]](https://img.chemicalbook.com/CAS/GIF/81238-58-6.gif)

![15-Crown-4 [4-(2,4-Dinitrophenylazo)phenol]](https://img.chemicalbook.com/CAS/GIF/81238-57-5.gif)
