4-Phenylazophenol
- Product Name4-Phenylazophenol
- CAS1689-82-3
- CBNumberCB5366310
- MFC12H10N2O
- MW198.22
- EINECS216-880-6
- MDL NumberMFCD00002330
- MOL File1689-82-3.mol
Chemical Properties
| Melting point: | 150-152 °C(lit.) |
| Boiling point: | 230°C/20mmHg(lit.) |
| Density | 1.1447 (rough estimate) |
| refractive index | 1.6330 (estimate) |
| storage temp. | 2-8°C |
| solubility | DMSO, Methanol |
| form | Fine Crystalline Powder |
| pka | 8.93±0.13(Predicted) |
| Colour Index | 11800 |
| color | Brown |
| Water Solubility | Soluble in acetone, ethanol, benzene and ether. Insoluble in water. |
| λmax | 347 nm |
| ε(extinction coefficient) | 10000 at 233-239nm in methanol at 0.005g/L |
| BRN | 957567 |
| Henry's Law Constant | 1.5×104 mol/(m3Pa) at 25℃, Duchowicz et al. (2020) |
| Major Application | diagnostic assay manufacturing hematology histology |
| InChI | 1S/C12H10N2O/c15-12-8-6-11(7-9-12)14-13-10-4-2-1-3-5-10/h1-9,15H/b14-13+ |
| InChIKey | BEYOBVMPDRKTNR-BUHFOSPRSA-N |
| SMILES | Oc1ccc(cc1)\N=N\c2ccccc2 |
| CAS DataBase Reference | 1689-82-3(CAS DataBase Reference) |
| IARC | 3 (Vol. 8, Sup 7) 1987 |
| EPA Substance Registry System | p-Phenylazophenol (1689-82-3) |
Safety
| Symbol(GHS) |
  GHS07,GHS09 |
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| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335-H411 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| PPE | dust mask type N95 (US), Eyeshields, Gloves | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36 | |||||||||
| RIDADR | 3234 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | SM8300000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 2927000090 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazard Classifications | Aquatic Chronic 2 | |||||||||
| Hazardous Substances Data | 1689-82-3(Hazardous Substances Data) | |||||||||
| NFPA 704: |
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