Flavan
| Names | |
|---|---|
| IUPAC name Flavan | |
| Systematic IUPAC name 2-Phenyl-3,4-dihydro-2H-1-benzopyran | |
| Identifiers | |
| 3D model (JSmol) | |
| 383899 | |
| ChEBI | |
| ChEMBL | |
| ChemSpider | |
| ECHA InfoCard | 100.007.079 | 
| EC Number | 
 | 
| PubChem CID | |
| CompTox Dashboard (EPA) | |
| 
 | |
| 
 | |
| Properties | |
| C15H14O | |
| Molar mass | 210.27 g/mol | 
| Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references | |
The flavans are benzopyran derivatives that use the 2-phenyl-3,4-dihydro-2H-chromene skeleton. They may be found in plants. These compounds include the flavan-3-ols, flavan-4-ols and flavan-3,4-diols (leucoanthocyanidin).
A C-glycosidic flavan can be isolated from cocoa liquor.
Casuarina glauca is an actinorhizal plant producing root nitrogen-fixing nodules infested by Frankia. There is a regular pattern of cell layers containing flavans.