... -Trimethoxy benzoic acid Structural formula: 3,4,5-Trimethoxy benzoic acid Molecular formula & Molecular ... Additives and Feed Additives. 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-Trimethoxybenzaldehyde,Methyl 3,4,5-trimethoxybenzoate and ...