(1,1'-Biphenyl)-4-butanoic acid, 2'-chloro-alpha-methylene-gamma-oxo-, methyl ester 58182-66-4 F 1440 Methyl 2'-chloro-alpha-methylene-gamma-oxo-(1,1'-biphenyl)-4-butanoate Methyl 2-methylene-4-oxo-4-(4'-o-chlorophenylphenyl) butyrate