4'-Acetamido-3-oxobutanilide 4'-Acetamidoacetoacetanilide 4-(Acetoacetylamino)acetanilide 4433-78-7 Acetoacetanilide, 4'-acetamido- Butanamide, N-[4-(acetylamino)phenyl]-3-oxo- NSC109485 p-Acetamidoacetoacetanilide