Ac-DEVD-CMK (Caspase-3 Inhibitor III) TFA is a selective and irreversible caspase-3 inhibitor. Ac-DEVD-CMK TFA significantly inhibits apoptosis induced by high levels of glucose or 3,20-dibenzoate (IDB; HY-137295). Ac-DEVD-CMK TFA can be used in a variety of experimental approaches to inhibit apoptosis.