2-fluoro-3,4-dimethoxybenzoic acid 2967-96-6 InChI=1/C9H9FO4/c1-13-6-4-3-5(9(11)12)7(10)8(6)14-2/h3-4H,1-2H3,(H,11,12 benzoic acid, 2-fluoro-3,4-dimethoxy-