Gallic acid(3,4,5-Trihydroxybenzoic acid) CAS: 149-91-7 Spc.: European standard -93 (first ... Our strong products are:Tannic Acid(Pharmaceutical/Tech/Dyes/Food Grade),Gallic acid(3,4,5-Trihydroxybenzoic acid),Pyrogallol(1,2,3-Benzenetriol),Ethyl gallate, Progyl ... Gallate, n-Octyl gallate,3,4,5- ...