Isopropyl 3,4-diaminobenzoate is primarily used in the field of organic synthesis, particularly as an intermediate in the production of dyes and pigments. Its diamine structure makes it valuable for creating complex dye molecules, especially azo dyes, which are widely used in textiles, inks, and coatings. Additionally, it finds application in the development of photosensitive materials, where it contributes to the synthesis of compounds used in photoresists for electronics and imaging technologies. Its role in polymer chemistry is also notable, as it can be incorporated into polymer chains to modify properties like adhesion, flexibility, or thermal stability. In pharmaceuticals, it serves as a building block for synthesizing active pharmaceutical ingredients (APIs) with specific therapeutic properties.