Resorcinol-o,o'-diacetic acid is primarily utilized in organic synthesis as a versatile intermediate. It plays a significant role in the development of pharmaceuticals, where it is used to create compounds with potential therapeutic properties. Additionally, it is employed in the synthesis of dyes and pigments, contributing to the production of vibrant and stable colorants for various industrial applications. Its chelating properties also make it useful in certain chemical processes where metal ion binding is required. Furthermore, it finds application in research and development, particularly in the study of chemical reactions and the creation of novel organic compounds.