3.4.17.20 76 - N-benzoyl-Gly-L-Arg in 50 mM HEPES (pH 8.0) at 25°C 707113 3.4.17.20 2950 - N-benzoyl-2'-cyano-L-Phe-L-Arg in 50 mM HEPES (pH 8.0) at 25°C 707113