... -Trimethoxy benzoic acid Structural formula: 3,4,5-Trimethoxy benzoic acid Molecular formula & Molecular weight: C10H12O5; 212. ... ),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 ...