SR1555（Cat No.:I036589）is a selective small molecule inhibitor that targets the protein RORγt (Retinoic acid receptor-related orphan receptor gamma t), a key transcription factor involved in the differentiation and function of Th17 cells. Th17 cells play a crucial role in autoimmune diseases and inflammatory disorders. By inhibiting RORγt, SR1555 aims to modulate immune responses and reduce inflammation, making it a potential therapeutic candidate for conditions such as rheumatoid arthritis, multiple sclerosis, and inflammatory bowel disease. Its specificity for RORγt offers a targeted approach to managing autoimmune and inflammatory diseases.