.alpha.,.alpha.,.alpha.-Trichloroacetone 1,1,1-Trichloro-2-propanone 1,1,1-Trichloroacetone 1,1,1-Trichloropropanone 2-Propanone, 1,1,1-trichloro- 918-00-3 NSC2645 Trichloroacetone