Ethylamine hydrobromide is primarily used in organic synthesis as a reagent for introducing the ethylamine group into various chemical compounds. It is particularly valuable in the preparation of pharmaceuticals, where it serves as a building block for active pharmaceutical ingredients (APIs). The compound is also employed in the synthesis of agrochemicals, contributing to the development of pesticides and herbicides. Additionally, it finds application in the production of dyes and pigments, where it acts as an intermediate in the creation of colorants. In research laboratories, ethylamine hydrobromide is utilized for studying reaction mechanisms and developing new synthetic pathways. Its role in these processes underscores its importance in advancing both industrial and academic chemistry.