Pyrogallols

3,4,5-trihydroxybenzoic acid

Pyrogallol is an organic compound with the formula C6H3(OH)3. It is a water-soluble, white solid although samples are typically brownish because of its sensitivity toward oxygen. It is one of three isomers of benzenetriols.

molecule resembling two gallic acid molecules assembled "head to tail" and bound by two lactone links and a C–C bond

Aurantinidin is a water-soluble, red plant dye. It is a member of the class of compounds known as anthocyanidins and is a hydroxy derivative of pelargonidin. Aurantinidin has been reported to occur in Impatiens aurantiaca (Balsaminaceae), and also in cultivars from genus Alstroemeria.

Benserazide is a peripherally acting aromatic L-amino acid decarboxylase or DOPA decarboxylase inhibitor, which is unable to cross the blood–brain barrier.

Baicalein (5,6,7-trihydroxyflavone) is a flavone, a type of flavonoid, originally isolated from the roots of Scutellaria baicalensis and Scutellaria lateriflora. It is also a constituent of Oroxylum indicum (Indian trumpetflower) and thyme. It is the aglycone of baicalin.

Scutellarein is a flavone that can be found in Scutellaria lateriflora and other members of the genus Scutellaria, as well as the fern Asplenium belangeri.

Ampelopsin, also known as dihydromyricetin and DHM, when used as an herbal medicine, is a flavanonol, a type of flavonoid. It is extracted from the Japanese raisin tree and found in Ampelopsis species japonica, megalophylla, and grossedentata; Cercidiphyllum japonicum; Hovenia dulcis; Rhododendron cinnabarinum; some Pinus species; and some Cedrus species, as well as in Salix sachalinensis.

Yuremamine is a phytoindole alkaloid which was isolated from the bark of Mimosa tenuiflora in 2005, and erroneously assigned a pyrrolo[1,2-a]indole structure that was thought to represent a new class of indole alkaloids. However, in 2015, the bioinspired total synthesis of yuremamine revealed its structure to be a flavonoid derivative. It was also noted in the original isolation of yuremamine that the alkaloid occurs naturally as a purple solid, but total synthesis revealed that yuremamine as a free base is colorless, and the formation of a trifluoroacetate salt during HPLC purification is wha

Gallacetophenone is the acetyl derivative of pyrogallol. It can be synthesized from pyrogallol using zinc chloride and acetic anhydride.

Theogallin is a trihydroxybenzoic acid glycoside, a type of polyphenolic compound found in tea where it has been characterised as an umami enhancing compound. The compound can also be found in Arbutus unedo fruits.

Robinetinidol is a flavanol, a type of flavonoids.

Tricetinidin is an intense red-colored chemical compound belonging to the 3-deoxyanthocyanidins. It can be found in black tea infusions. Tricetinidin, in tea, would be a product of the oxidative degallation of epigallocatechin gallate (EGCG).

Quercetagetin is a flavonol, a type of flavonoid. It can be found in the genus Eriocaulon.

Robinetinidin is an anthocyanidin, a type of flavonoid.

oxidatively coupled derivative of gallic acid

Norbergenin is a chemical compound. It is the O-demethylated derivative of bergenin. It can be isolated from rhizomes of Bergenia stracheyi.

Pentagalloylglucose, or more specifically '1,2,3,4,6-penta-O-galloyl-β-D-glucose', is the pentagallic acid ester of glucose. It is a gallotannin and the precursor of ellagitannins.

Theaflavin-3-gallate is a theaflavin derivative. It can be found in abundance in black tea and is produced during fermentation. It has been studied as a cancer-fighting chemical when combined with cisplatin against ovarian cancer cells. Consuming large amounts of black tea has been reported to reduce the effects of aging in female populations.

Purpurogallin is an aglycone natural product. It is an orange-red solid that is soluble in polar organic solvents but not in water. Its glycoside (ether-linked to sugar), called dryophantin, is found in nutgalls and oak barks. Purpurogallin can be prepared by oxidation of pyrogallol with sodium periodate.

chemical compound

chemical compound

Leucodelphinidin is a colorless chemical compound related to leucoanthocyanidins. It can be found in Acacia auriculiformis, in the bark of Karada (Cleistanthus collinus) and in the kino (gum) from Eucalyptus pilularis.

6-Hydroxycyanidin is an anthocyanidin.

chemical compound

chemical compound

natural phenol found in numerous fruits

Pulchellidin (Pl) is an O-methylated anthocyanidin. It is a blue-red plant pigment. It can be found in Plumbago pulchella.

'5-O-Methylmyricetin' is an O-methylated flavonol, a type of flavonoid. It is the 5-O-methyl derivative of myricetin. It occurs naturally and can also be synthesized.

Rufigallol or 1,2,3,5,6,7-hexahydroxy-9,10-anthraquinone is an organic compound with formula . It one of several hydroxyanthraquinones. It occurs naturally being derived from gallic acid.

chemical compound

chemical compound

Europetin is an O-methylated flavonol. It can be found in Plumbago europaea and it can be prepared synthetically.

1,2,6-Trigalloylglucose, or more specifically '1,2,6-tri-O-galloyl-β-D-glucose', is a gallotannin found in cell cultures of Cornus officinalis.