... chemical, food, printing & dyeing, astronavigation and national defense and micro-electronics areas, Also the final goods usually exported to the ... 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 so on.