Used primarily as an intermediate in the synthesis of dyes and pigments, especially in the production of copper phthalocyanine pigments which are valued for their bright blue and green shades. It also serves in the manufacture of certain herbicides and agrochemicals due to its chlorinated aromatic structure, which can enhance bioactivity. Additionally, it finds use in the development of specialty chemicals, including heat-stable polymers and flame retardants, where chlorine content contributes to thermal and chemical resistance.