... : 149-91-7 Spc.: European standard -93 (first grade), JIS (first grade), AP21 (1985), Top grade. Name: Gallic acid Chemical Name: 3,4 ... crystalline powder. Quality index: European standard -93 (first grade), JIS (first grade), AP21 (1985), Top grade. Uses: Widely used in medicine, dyestuff, chemicals ...