性能描述

assay    97.5-102.5% (titration) 
mp    251 °C (dec.)(lit.) 
Biochem/physiol Actions
Gallic acid is a water soluble phenolic acid present in grapes and in the leaves of many plants. Gallic acid esters, such as tannins, catechin gallates and aliphatic gallates are potent antioxidants in vitro. However, gallic acid itself also appears to have antioxidant, anticarcinogenic and antiangiogenic activity in vitro.

外观：白色或浅褐色针状结晶或粉末（由无水甲醇和氯仿中结晶），210℃升华时，得到一个稳定型结晶，258～265℃（分解）和一个不稳定型结晶。100～120℃失去结晶水。
溶解性：1g熔于87ml水、3ml沸水 、6ml乙醇、100ml乙醚、10ml甘油及5ml丙酮。几乎不溶于苯、氯仿及石油醚。