Tyk2 inhibitor 5 is primarily used in research and development for its potential therapeutic applications in autoimmune diseases and inflammatory conditions. It works by selectively inhibiting the Tyk2 enzyme, which plays a critical role in signaling pathways associated with immune responses. This makes it a promising candidate for treating conditions like psoriasis, lupus, and inflammatory bowel disease. Additionally, it is being studied for its potential in cancer therapy, as Tyk2 is involved in pathways that can promote tumor growth and survival. Its application in preclinical studies helps in understanding its efficacy and safety profile for future clinical use.