英文别名BUTANOIC ACID, 4-CHLORO-4,4-DIFLUORO-3-OXO, -ETHYL ESTER; ETHYL 4-CHLORO-4,4-DIFLUOROACETOACETATE; Ethyl 4-chloro-4,4-difluoro-3-oxobutyrate; ethyl difluorochloroacetoacetate; ethyl 4-chloro-4,4-difluoro-3-oxo-butanoate; ethyl 4,4-difluoro-4-chloro-3-oxo-butanoic acid; 4-chloro-4,4-difluoroacetic acid ethyl ester 
