2-Chloro-2,2-difluoroacetophenone 97%2-Chloro-2,2-difluoro-1-phenylethan-1-oneCHLORODIFLUOROACETOPHENONE2,2,2-Chlorodifluoroacetophenonealpha,alpha-Difluorophenacyl chloridealpha-Chloro-alpha,alpha-difluoroacetophenone2-氯-2,2-二氟苯乙酮2-Chloro-2,2-difluoroacetophenone