Showing structure for (2s)-2-{[(2s)-2-{[(2s)-2-amino-6-[(2-{[(2,3-dihydroxyphenyl)(hydroxy)methylidene]amino}-1-hydroxyethylidene)amino]-1-hydroxyhexylidene]amino}-6-{[(2,3-dihydroxyphenyl)(hydroxy)methylidene]amino}-1-hydroxyhexylidene]amino}-3-phenylpropanoic acid