Chemical Formula: C60H89N15O13

6-Amino-2-({[1-(2-{[6-amino-2-({2-[(2-{[2-({2-[(2-{[2-amino-1-hydroxy-3-(4-hydroxyphenyl)propylidene]amino}-1-hydroxyethylidene)amino]-1-hydroxyethylidene}amino)-1-hydroxy-3-phenylpropylidene]amino}-1-hydroxy-4-methylpentylidene)amino]-5-carbamimidamido-1-hydroxypentylidene}amino)-1-hydroxyhexylidene]amino}-3-(4-hydroxyphenyl)propanoyl)pyrrolidin-2-yl](hydroxy)methylidene}amino)hexanoate

H-DL-Tyr-Gly-Gly-DL-Phe-DL-Leu-DL-Arg-DL-Lys-DL-Tyr-DL-Pro-DL-Lys-OH