1-Chloroacetone, is an intermediate in the manufacture of various chemicals such as 5-Chloro Acesulfame (C363250). It can also be used to make dye couplers for color photography.
Haber, L. F., et al.: The Poisonous Cloud, Oxford University press.(1986); Phys. Chem. Chem. Phys., 2000,2, ;