|   | |
| Names | |
|---|---|
| IUPAC name Flavone [1]  | |
| Systematic IUPAC name 2-Phenyl-4H-1-benzopyran-4-one 2-Phenyl-4H-chromen-4-one | |
| Identifiers | |
| 3D model (JSmol) | |
| 157598 | |
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| DrugBank | |
| ECHA InfoCard | 100.007.623 | 
| EC Number | 
 | 
| 1224858 | |
| KEGG | |
|  PubChem CID | |
| RTECS number | 
 | 
| UNII | |
|  CompTox Dashboard (EPA) | |
| 
 | |
| 
 | |
| Properties | |
| C15H10O2 | |
| Molar mass | 222.243 g·mol−1 | 
| Appearance | white solid | 
| Melting point | 96–97 °C (205–207 °F; 369–370 K) | 
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Flavone is an organic compound with the formula C6H4OC3H(Ph)O. A white solid, flavone is a derivative of chromone with a phenyl (Ph) substituent adjacent to the ether group. The compound is of little direct practical importance, but substituted derivatives, the flavones and flavonoids are a large class of nutritionally important natural products. [2] Flavone can be prepared in the laboratory by cyclization of 2-hydroxacetophenone. [3] Isomeric with flavone is isoflavone, where the phenyl group is adjacent to the ketone.