... ), AP21 (1985), Top grade. Name: Gallic acid Chemical Name: 3,4,5-Trihydroxybenzoic acid Structural formula: Molecular formula & Molecular weight ... : C7H8O6 / 88.13 Gallic acid Appearance: white or white crystalline powder. Quality index: ... strong products are:Tannic Acid(Pharmaceutical/Tech/Dyes/Food Grade),Gallic acid(3,4,5-Trihydroxybenzoic acid),Pyrogallol(1,2,3 ...