N-[1-[N-[N-[1-[N-[(phenylmethoxy)carbonyl]glycyl]-L-prolyl]glycyl]glycyl]-L-prolyl]-L-alanine 2-({1-[2-(2-{[1-(2-BENZYLOXYCARBONYLAMINO-ACETYL)-PYRROLIDINE-2-CARBONYL]-AMINO}-ACETYLAMINO)-ACETYL]-PYRROLIDINE-2-CARBONYL}-AMINO)-PROPIONIC ACID Collagenase-Substrate (for quantitative Collagenase-Determination) 2-((1-[2-(2-([1-(2-BENZYLOXYCARBONYLAMINO-ACETYL)-PYRROLIDINE-2-CARBONYL]-AMINO)-ACETYLAMINO)-ACETYL]-PYRROLIDINE-2-CARBONYL)-AMINO)-PROPIONIC ACID N-CBZ-GLY-PRO-GLY-GLY-PRO-ALA N-carbobenzoxyglycyl-prolyl-glycyl-glycyl-prolyl-alanine N-CBZ-glycyl-L-prolyl-glycyl-glycyl-L-prolyl-L-alanine Z-Gly-Pro-Gly-Gly-Pro-Ala