Paashaanbhed in Ayurveda traditional Indian medicine).

[1] It exists as at least 2 major epimers (afzelechin and epi-afzelechin).

[3] (+)-afzelechin-O-β-4'-D-glucopyranoside can be isolated from the rhizomes of the fern Selliguea feei.

[4] Afzelechin-(4alpha→8)-afzelechin (molecular formula : C30H26O10, molar mass : 546.52 g/mol, exact mass : 546.152597, CAS number : 101339-37-1, Pubchem CID : 12395) is a B type proanthocyanidin.

Ent-epiafzelechin-3-O-p-hydroxybenzoate-(4α→8,2α→O→7)-epiafzelechin) is an A-type proanthocyanidin found in apricots (Prunus armeniaca).