The chemical Tannic Acid has a designated molecular formula of C76H52O46 and a molecular weight of 1701.206 g/mol. Synonyms may include: Acacia mollissima tannin, Acid, tannic, Acide tannique [French], d'Acide tannique [French], Castanea sativa Mill tannin, Caswell No. 819, CCRIS 571, EINECS 215-753-2, EPA Pesticide Chemical Code 078502, FEMA No. 3042, Gallotannic acid (ChemID).