Colorimetric substrates plus inhibitors to allow detection of multiple caspases. Absorbance is monitored at 405 nm. Product Specification Kit/Set Contains: 1 mg each of Ac-DEVD-pNA, Ac-YVAD-pNA, Ac-IETD-pNA; 0.1 mg each of Ac-DEVD-CHO, Ac-YVAD-CHO, Ac-IETD-CHO; 1 mg p-nitroaniline. Shipping: SHIPPED ON BLUE ICE Long Term Storage: -20°C