Thalidomide-O-C5-NH2 hydrochloride is primarily utilized in the development of novel therapeutic agents, particularly in the field of oncology. Its structure allows it to act as a modulator of the immune system, making it valuable in the treatment of certain cancers, such as multiple myeloma. The compound is also studied for its potential anti-angiogenic properties, which inhibit the formation of new blood vessels that supply tumors, thereby restricting their growth. Additionally, it is explored for its role in treating inflammatory conditions due to its ability to regulate cytokine production. Researchers are actively investigating its derivatives to enhance efficacy and reduce side effects in clinical applications.