Castavinols are

natural phenol In biochemistry, naturally occurring phenols are natural products containing at least one phenol functional group. Phenolic compounds are produced by plants and microorganisms. Organisms sometimes synthesize phenolic compounds in response to eco ...

ic compounds found in

red wine Red wine is a type of wine made from dark-colored grape varieties. The color of the wine can range from intense violet, typical of young wines, through to brick red for mature wines and brown for older red wines. The juice from most purple gra ...

s.Castavinol, a new series of polyphenols from Bordeaux red wines. Chantal Castagnino and Joseph Vercauteren, Tetrahedron Letters, Volume 37, Issue 43, 21 October 1996, pp. 7739-7742, These molecules are colorless and are derived from

anthocyanin Anthocyanins (), also called anthocyans, are water-soluble vacuolar pigments that, depending on their pH, may appear red, purple, blue, or black. In 1835, the German pharmacist Ludwig Clamor Marquart gave the name Anthokyan to a chemical co ...

pigments. Thus their formation leads to a

wine color The color of wine is one of the most easily recognizable characteristics of wines. Color is also an element in wine tasting since heavy wines generally have a deeper color. The accessory traditionally used to judge the wine color was the tastevi ...

loss.

Known molecules

* Castavinol C1 * Castavinol C2 *

Castavinol C3 Castavinol C3 is a castavinol, a natural phenolic compound found in red wine Red wine is a type of wine made from dark-colored grape varieties. The color of the wine can range from intense violet, typical of young wines, through to brick red ...

* Castavinol C4

References

External links

1996 : Les molécules des futurs millésimes Bordelais ? C. Castagnino, C. Chèze and J. Vercauteren, Bull. Soc. Pharm. Bordeaux, 1997, 136, pp. 19-36
(French) Flavonoids {{aromatic-stub