| |
| Names | |
|---|---|
| Preferred IUPAC name
4-(Phenyldiazenyl)phenol | |
| Other names
4-Hydroxyazobenzene | |
| Identifiers | |
3D model (JSmol) |
|
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.015.346 
|
| EC Number |
|
| KEGG | |
PubChem CID |
|
| UNII | |
CompTox Dashboard (EPA) |
|
| |
| |
| Properties | |
| C12H10N2O | |
| Molar mass | 198.225 g·mol−1 |
| Appearance | An orange solid[2] |
| Melting point | 155 °C (311 °F; 428 K) |
| Slightly soluble in hot water | |
| Solubility in other solvents | Soluble in ethanol, acetone |
| Acidity (pKa) | 8.2 (from the hydroxyl group) |
| Hazards | |
| Occupational safety and health (OHS/OSH): | |
Main hazards |
Irratant |
| Related compounds | |
Related compounds |
Benzenediazonium chloride |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
| |
Solvent Yellow 7 is an aromatic organic molecule and a common azo dye with a formula of C6H5N2C6H4OH.[3] It has a phenolic hydroxyl and an azo group in the same molecule.[4]
Like most azobenzenes, Solvent Yellow 7 can be synthesized by the reaction of the phenyldiazonium salt with phenol. The optimal pH value for this azo coupling is 8.5-10. The reaction is carried out in water, since sodium chloride (orpotassium chloride) formed in the reaction is soluble in water, while the product precipitates.[5]
As azo dyes are not usually water soluble, the effect of various solvents on them has been studied analytically, and likewise analytical methods and calculations for the color concentration developed.[6][7]
The molecule can be further reacted including with bromine,[8] and other halogens.[9] Other reactions include nitration.[10] The reactivity with Grignard reagents has also been studied.[11]
The toxicology has been extensively studied,[12] including IARC studies.[13] There have been other extensive reviews.[14]
 | This article about an aromatic compound is a stub. You can help Wikipedia by expanding it. |
