Morpholine-4-carboxamidine hydrobromide is primarily used in organic synthesis as a reagent for the preparation of various heterocyclic compounds. It is particularly valuable in the synthesis of guanidine derivatives, which are important intermediates in the development of pharmaceuticals. The compound is also utilized in the production of certain types of dyes and pigments, where it acts as a key building block. Additionally, it finds application in the field of medicinal chemistry for the creation of molecules with potential biological activity, such as antimicrobial or antiviral agents. Its role in facilitating complex chemical reactions makes it a crucial component in research and industrial processes aimed at developing new chemical entities.