1,4-Bis(acetoacetamido)-2,5-dichlorobenzene 2,5-Bis(acetoacetamido)-1,4-dichlorobenzene 2,5-Dichloro-1,4-bis(acetylacetamido)benzene 42487-09-2 Butanamide, N,N'-(2,5-dichloro-1,4-phenylene)bis[3-oxo- N,N'-Bisacetoaceto(2,5-dichloro-p-phenylenediamine) NSC166276