N-(t-BuOCO-)L-Phe-L-Thr-L-Ser-S-Acm-L-Cys-OH2-[[[4-(Phenylazo)phenyl]methyl]sulfonyl]ethyl

2-[[[4-(phenylazo)phenyl]methyl]sulphonyl]ethyl S-(acetamidomethyl)-N-[N-[N-[N-(tert-butoxycarbonyl)-3-phenyl-L-alanyl]-L-threonyl]-L-seryl]-L-cysteinate