1,1,1,2,2,3,3-Heptachloropropane is a compound of chlorine, hydrogen, and carbon. Its linear formula is CClCHCl.
Heptachloropropane is made in a modified Friedel-Crafts or Prins reaction from chloroform and tetrachloroethylene with catalytic aluminum chloride. Dehydrochlorination with a base gives hexachloropropene.