Used as an intermediate in the manufacture of dyes pesticides and other chemicals. Employed in organic synthesis and research laboratories. Historically used in heat transfer fluids and insulating materials.

Its main purpose is to act as a chemical intermediate helping produce more complex industrial compounds especially where a stable chlorinated aromatic structure is needed.

A colorless to yellow liquid with a strong odor consisting of a naphthalene ring substituted with a chlorine atom. It is relatively stable and has moderate volatility.