64040-76-2

D-Phenylalanine,N-[O-benzoyl-N-[N-[O-benzoyl-N-[1-[N-[O-benzoyl-N-[N-(O-benzoyl-N-L-prolyl-L-seryl)glycyl]-L-seryl]-D-phenylalanyl]-L-prolyl]-L-seryl]glycyl]-L-seryl]-, hydrazide