Chemical Formula: C51H69N13O11S2

2-[({19-[(2-amino-1-hydroxy-3-phenylpropylidene)amino]-10-(3-carbamimidamidopropyl)-6,9,12,15,18-pentahydroxy-7-(1-hydroxyethyl)-16-[(4-hydroxyphenyl)methyl]-13-[(1H-indol-3-yl)methyl]-3,3-dimethyl-1,2-dithia-5,8,11,14,17-pentaazacycloicosa-5,8,11,14,17-pentaen-4-yl}(hydroxy)methylidene)amino]-3-hydroxybutanimidate

H-D-Phe-Cys-Tyr-D-Trp-Arg-Thr-Pen-Thr-NH2 (Disulfide bond between Cys2 and Pen7)