Used primarily as an intermediate in the synthesis of herbicides, particularly 2,4-D (2,4-dichlorophenoxyacetic acid), a widely used broadleaf weed killer in agriculture and lawn care. Also serves as a precursor in the production of other chlorinated compounds and certain dyes. Occasionally employed as a disinfectant or preservative due to its antimicrobial properties, though this application is limited due to toxicity and environmental concerns. Its presence in industrial processes can lead to environmental contamination, requiring careful handling and disposal.