Hydroxyquinols

chemical compound related to the pigment carmine

Hydroxyquinol is an organic compound with the formula C6H3(OH)3. It is one of three isomeric benzenetriols. The compound is a colorless solid that is soluble in water. It reacts with air to give a black insoluble solid.

1,2,4-Trihydroxyanthraquinone, commonly called purpurin, is an anthraquinone. It is a naturally occurring red/yellow dye. It is formally derived from 9,10-anthraquinone by replacement of three hydrogen atoms by hydroxyl (OH) groups.

Gossypetin, also known as '''3,5,7,8,3',4'-hexahydroxyflavone', is a flavonol, a type of flavonoid. It has been isolated from the flowers and the calyx of Hibiscus sabdariffa'' (roselle) and exhibits a strong antibacterial activity. The compound has also been found to act as an antagonist of TrkB. Gossypetin has radioprotective activity.

Herbacetin is a flavonol, a type of flavonoid.

Dihydrogossypetin is a flavanonol, a type of flavonoid.

Columnidin is an orange red pigment, belonging to the 3-deoxyanthocyanidins found in red-flowered western-hemisphere gesneriad species such as episcias, columneas, sarmientas, and sinningias.

chemical compound