BRD4-IN-12 is a potent and orally active BRD4 inhibitor with an IC50 of 7.9 nM. BRD4-IN-12 downregulates the expression of c-MYC, BCL-2, CDK4 and upregulates p21. BRD4-IN-12 inhibits tumor cell proliferation and promotes apoptosis. BRD4-IN-12 exhibits excellent antitumor effects in the HCT-116 colorectal cancer xenograft model. BRD4-IN-12 can be used for the study of colorectal cancer (CRC)[1].