👉 The term "heptachlor" is not a recognized scientific term or name. It appears to be an abbreviation for the chemical compound heptachlor, which is a colorless, odorless gas that is toxic and has been used as a chemical agent in warfare since the 1950s. The full chemical name for this compound is heptafluorocarboxylic acid hexachloride (HFCC), and it is commonly referred to as "Heptach