Used primarily as an intermediate in the synthesis of other organic compounds, especially in the production of dyes, pigments, and pesticides. It serves as a heat transfer medium in industrial systems due to its thermal stability. Also employed as a solvent for oils, resins, and waxes in specialized applications where high boiling point and low reactivity are required. Historically used in the manufacture of wood preservatives and fungicides, though such uses have declined due to environmental and toxicity concerns. Occasionally utilized in laboratory settings as a reference standard or reagent in analytical chemistry.