Min. Order Reference FOB Price
500 kg US$3.40-3.90 / kg
Product Description
Tannic acid is a specific form of tannin, a polyphenol. The chemical formula for commercial tannins is usually C76H52O46, which corresponds to decacylglucoses, but in reality, it is a mixture of polygalactosylglucose or polygalactosylquinic ester, with the number of galacyl parts in each molecule ...