Journal of Analytical Methods in Chemistry / 2019 / Article / Sch 1

Research Article

Study of Complexes of Tannic Acid with Fe(III) and Fe(II)

Scheme 1

Chemical structure of tannic acid, a decagalloyl residue consisting of a center glucose molecule esterified at all five hydroxyl moieties with two gallic acids. The circle indicates pentagalloylglucose and the core structure of tannic acid.