4-(Trifluoromethyl)benzoic acid4-(Trifluoromethyl)benzoic acid 98%p-CARBOXYBENZOTRIFLUORIDE4-(三氟甲基)苯甲酸α,α,α-Trifluoro-p-toluic acid对三氟甲基苯甲酸α,α,α-三氟对甲苯酸4-Carboxybenzotrifluoride4-(Trifluoromethyl)benzoic acidalpha,alpha,alpha-Trifluoro-p-toluic acidp-Trifluoromethylbenzoic acid