chloroacetoacetyl chloride, EINECS 255-301-1, 3-oxo-4-chlorobutyryl chloride, 4-chloro-3-oxo-butyryl chloride, 4-Chloro-3-oxobutanoylchloride, Butanoyl chloride, 4-chloro-3-oxo-, 4-Chloroacetoacetyl chloride, Butanoyl chloride,4-chloro-3-oxo, g-Chloroacetoacetyl chloride, 2-chloroacetoacetic acid chloride