Acetoacetanilide,4'-acetamido, 1-acetoacetylamino-4-acetylamino-benzene, p-Acetamidoacetoacetanilide, Butanamide,N-(4-(acetylamino)phenyl)-3-oxo, 1-Acetoacetylamino-4-acetylamino-benzol, 4'-Acetamidoacetoacetanilide, 4-(Acetoacetylamino)acetanilide, 4'-Acetamido-3-oxobutanilide, Acetessigsaeure-(4-acetamino-anilid), N-[4-(acetylamino)phenyl]-3-oxobutyramide, N-Acetyl-N'-acetoacetyl-p-phenylendiamin