Procyanidin A2 is an A type proanthocyanidin.
It is found in avocado,Proanthocyanidin-A-2 on liberherbarum.com chestnut, cranberry juice concentrate, lychee fruit pericarp,Sarni-Manchado P, Le Roux E, Le Guerneve C, Lozano Y, Cheynier V. Phenolic composition of litchi fruit pericarp" J Agric Food Chem 2000;48(12):5995-6002. peanut skins, Cinchona cortex, cinnamon cortex, Urvillea ulmaceae, and Ecdysanthera utilis.
Synthesis Procyanidin B2 can be converted into procyanidin A2 by radical oxidation using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radicals under neutral conditions.
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