Chemical Formula: C77H109N17O20

(2s)-2-{[(2s)-2-{[(2s)-2-{[(2s)-2-[(2-{[(2s)-2-{[(2s)-2-({[(3s,6s,13s,19s,22s,27as)-22-(4-aminobutyl)-13-benzyl-3-[(2s)-butan-2-yl]-1,4,8,11,14,17,20-heptahydroxy-19-(hydroxymethyl)-23-oxo-3h,6h,7h,10h,13h,16h,19h,22h,25h,26h,27h,27ah-pyrrolo[2,1-f]1,4,7,10,13,16,19,22-octaazacyclopentacosan-6-yl](hydroxy)methylidene}amino)-1,3-dihydroxypropylidene]amino}-1-hydroxy-3-phenylpropylidene]amino}-1-hydroxyethylidene)amino]-1-hydroxy-4-methylpentylidene]amino}-1,3-dihydroxypropylidene]amino}-1-hydroxy-3-(1h-indol-3-yl)propylidene]amino}-4-methylpentanoic acid