Phenylazoresorcinol is widely used in the dye industry for coloring textiles, leather, and paper. Its ability to produce vibrant and stable colors makes it a popular choice for synthetic dyes. In the cosmetic industry, it is utilized in hair dyes and other coloring products due to its effective pigmentation properties. Additionally, it serves as an intermediate in the synthesis of various organic compounds, contributing to the production of pharmaceuticals and other specialty chemicals. Its applications also extend to laboratory research, where it is used as a reagent in chemical reactions and analytical processes.