Potent and cell permeable p38 MAP kinase inhibitor. Apoptosis inducer. Inhibits p38alpha and beta, but not gamma and delta isoforms. Does not inhibit ERK2 or other members of the MAP kinase family or their upstream activators. JNK activator.Storage and Stability:Short-term Storage: +4°CLong-term Storage: -20°CStable for at least 2 years after receipt when stored at -20°C.