KnowraTannic acidLinked fromLinked fromThe 3 pages that link to Tannic acid, each with the reason it gives.All 3Related 1Compared with 2Gallic acidCompared with: Unlike the single small molecule gallic acid, tannic acid is a larger, multigalloylated substance.Ellagic acidCompared with: Unlike ellagic acid, it is a larger, heterogeneous tannin preparation.