Valoneic acid dilactone - AbsoluteAstronomy.com

Valoneic acid dilactone is a hydrolysable tannin

Hydrolysable tannin

A hydrolyzable tannin or pyrogallol-type tannin is a type of tannin that, on heating with hydrochloric or sulfuric acids, yields gallic or ellagic acids....

that can be isolated from the heartwood of Shorea laeviforia
Shorea laeviforia
Shorea laeviforia is a plant species in the genus Shorea.Valoneic acid dilactone, flavogallonic acid dilactone, gallagyldilactone, ellagic acid and gallic acid are hydrolysable tannins that can be isolated from the heartwood of S...

.

The source of this article is wikipedia, the free encyclopedia. The text of this article is licensed under the GFDL.