General view of a section of the Dow Chemical Company's Chlorobenzene Plant located in Midland, Michigan. Chlorobenzene is commonly used to produce pharmaceuticals, specialty chemicals, plastics, glazing materials, resins, dyes, and pesticides. In addition, the hydrolysis of chlorobenzene is part of the preparation of phenol (also known as carbonic acid), an aromatic organic compound primarily used to synthesize plastics and related materials.