Keap1-Nrf2-IN-11 (compound 6k) is a Keap1-Nrf2 inhibitor with K D2 value of 0.21 nM. Keap1-Nrf2-IN-11 inhibits the productions of ROS and NO and the expression of TNF-α. Keap1-Nrf2-IN-11 relieves inflammations by increasing the Nrf2 nuclear translocation. Keap1-Nrf2-IN-11 can be used for anti-inflammatory research.