A cell-permeable (thienothienyl)amino-acetamide compound that displays anti-inflammatory properties. Acts as a potent, reversible, ATP-competitive, and highly selective inhibitor of IKK-2 (IC50 ~3-12 µM for IKK-2 homodimer, IKK-1/IKK-2 heterodimer, and IKK-2). Its specificity has been confirmed using a panel of 31 other kinases, including IKK isoforms IKK-1, IKK-i, and TBK-1 (IC50 > 200 µM). Shown to specifically block NF-kB-dependent gene expression, but not MAP kinase pathways, in stimulated synovial fibroblasts RASF. Purity: ≥95% by HPLC.