Flavan-4-ol
Chemical compound
From Wikipedia, the free encyclopedia
The flavan-4-ols (3-deoxyflavonoids) are flavone-derived alcohols and a family of flavonoids. Flavan-4-ols are colorless precursor compounds that polymerize to form red phlobaphene pigments.[1] They can be found in the sorghum.[2] Glycosides (abacopterins A, B, C and D together with triphyllin A and 6,8-dimethyl-7-hydroxy-4‘-methoxyanthocyanidin-5-O-β-d-glucopyranoside) can be isolated from a methanol extract of the rhizomes of Abacopteris penangiana.[3]
| Names | |
|---|---|
| IUPAC name
Flavan-4-ol | |
| Systematic IUPAC name
2-Phenyl-3,4-dihydro-2H-1-benzopyran-4-ol | |
| Other names
2-Phenylchroman-4-ol | |
| Identifiers | |
3D model (JSmol) |
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| ChemSpider | |
PubChem CID |
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| Properties | |
| C15H14O2 | |
| Molar mass | 226.275 g·mol−1 |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Known flavan-4-ols
Metabolism
Flavanone 4-reductase is an enzyme that uses (2S)-flavan-4-ol and NADP+ to produce (2S)-flavanone, NADPH, and H+.
Spectral data
These compounds have absorption maxima of 564 nm.[4]

