Perfluoro-2-hydroxy-2-methylpropanoic acid 95%2,2-Bis(trifluoromethyl)(hydroxy)acetic acid,2-Hydroxy- 3,3,3-Trifluoro-2-(trifluoromethyl)propanoic acid2,2-Bis(trifluoromethyl)glycolic acid2,2-Bis(trifluoromethyl)-2-hydroxyacetic acid3,3,3-Trifluoro-2-hydroxy-2-(trifluoromethyl)propionic acid2-羟基-3,3,3-三氟-2-(三氟甲基)丙酸