PZ-PEPTIDE;PZ-PRO-LEU-GLY-PRO-D-ARG-OH;PZ-PRO-LEU-GLY-PRO-D-ARG-OH 2H2O;4-PHENYLAZOBENZYLOXYCARBONYL-L-PRO-LEU-GLY-PRO-D-ARG DIHYDRATE;4-PHENYLAZOBENZYLOXYCARBONYL-PRO-LEU-GLY-PRO-D-ARG;4-PHENYLAZOBENZYLOXYCARBONYL-PRO-LEU-GLY-PRO-D-ARG-OH;COLLAGENASE SUBSTRATE PER E WUNSCH;COLLAGENASE SUBSTRATE-A