Terflavin B is an

ellagitannin image:Castalagin.svg, 130px, Castalagin is a representative ellagitannin, characterized by coupled gallic acid substituents The ellagitannins are a diverse class of hydrolyzable tannins, a type of polyphenol formed primarily from the oxidative link ...

, a type of hydrolysable tannin. It can be found in ''Myrobalanus chebula'' (''

Terminalia chebula ''Terminalia chebula'', commonly known as black- or chebulic myrobalan, is a species of ''Terminalia'', native to South Asia from Pakistan, India and Nepal east to southwest China (Yunnan), and south to Sri Lanka, Malaysia, and Vietnam.Flora of ...

''), the black chebulic, and in ''

Terminalia catappa ''Terminalia catappa'' is a large Tropics, tropical tree in the leadwood tree family, Combretaceae, native to Asia, Australia, the Pacific, Madagascar and Seychelles. Common names in English include country almond, Indian almond, Malabar almond, ...

'', the Indian almond.Terflavin B on www.liberherbarum.com
/ref> It is formed from a

nonahydroxytriphenic acid Nonahydroxytriphenic acid is a moiety found in some ellagitannins such as roburin A, B,C and D, castalagin Castalagin is an ellagitannin, a type of hydrolyzable tannin, found in oak and chestnut wood and in the stem barks of ''Terminalia leiocarpa ...

dilactone and a

gallic acid Gallic acid (also known as 3,4,5-trihydroxybenzoic acid) is a trihydroxybenzoic acid with the formula C6 H2( OH)3CO2H. It is classified as a phenolic acid. It is found in gallnuts, sumac, witch hazel, tea leaves, oak bark, and other plant ...

linked to a glucose molecules.

References

Ellagitannins {{aromatic-stub