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Iminodiacetic acid (Diacetoxyiodo)benzene 2,4,5-Trifluorophenylacetic acid 2,4-Difluorophenylacetic acid Methyl 3-Oxo-4-(2,4,5-trifluorophenyl)butanoate 2-CHLOROMETHYL-5-TRIFLUOROMETHYL-[1,3,4]OXADIAZOLE Sitagliptin Defuoro IMpurity 3 2-Pentafluorophenyl-malonic acid diethyl ester 3-(Trifluoromethyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[4,3-a]pyrazine hydrochloride Ethyl trifluoroacetate