1-(4-Bromo-phenyl)-2,2,2-trifluoro-ethanone4′-Bromo-2,2,2-trifluoroacetophenone4'-Bromo-2,2,2-trifluoroacetophenone 99%1-(4-Bromophenyl)-2,2,2-trifluoroethan-1-one4-溴-α,α,α-三氟苯乙酮4′-溴-2,2,2-三氟苯乙酮1-(4-bromophenyl)-2,2,2-trifluoroethan-1-one4-Bromo-α,α,α-trifluoroacetophenone4'-Bromo-2,2,2-trifluoroacetophenone