Purpurogallin carboxylic acid, isolated from Macleaya microcarpa (Maxim.) Fedde, is an oxidation product of gallic acid in fermented tea. Purpurogallin carboxylic acid has anti-cancer activity[1][2].
[1]. Jhoo, J.W, et al. Anti-inflammatory Effects of Purpurogallin Carboxylic Acid, An Oxidation Product of Gallic Acid in Fermented Tea. [2]. Rambabu M, et al. Virtual screening of National Cancer Institute database for claudin-4 inhibitors: Synthesis, biological evaluation, and molecular dynamics studies. J Cell Biochem. 2018 Nov 26.
















