CAS No 128439-50-9 , (2S)-1-[(2S)-1-[(2S)-1-[(2S)-1-[(2S)-1-[(2S)-1-[(2S)-2-[[(2S)-1-[(2S)-2-
[[(2S)-2-amino-3-(4-hydroxyphenyl)propanoyl]amino]-3-carboxypropanoyl]
pyrrolidine-2-carbonyl]amino]propanoyl]pyrrolidine-2-carbonyl]
pyrrolidine-2-carbonyl]pyrrolidine-2-carbonyl]pyrrolidine-2-carbonyl]
pyrrolidine-2-carbonyl]pyrrolidine-2-carboxylic acid