Z-F-R-AMC Description A peptide substrate used to experimentally determine cathepsin B and L activities. Specifications Product ID Z2268 Product Name Z-F-R-AMC Formula Wt. 612.68 Store Temp +4oC References Li Y. et. al. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi. 16: 101-4 (1998).