Used primarily as an intermediate in the synthesis of various pharmaceuticals, particularly in the production of beta-lactam antibiotics like amoxicillin and cephalexin, where it provides the crucial (4-hydroxyphenyl)glycine side chain. Additionally, it finds application in the manufacture of dyes and pigments, where it acts as a coupling agent to enhance color stability and intensity, especially for natural fibers such as silk and cotton. In the field of organic synthesis, it serves as a building block for creating complex molecules, contributing to advancements in medicinal chemistry and material science. It also has applications in photographic materials.