N-[2-[2-[2-[[(2S)-2-[[(2S)-5-carbamimidamido-1-hydroxy-2-[[(2R)-1-hydroxy-2-[[(2S)-1-hydroxy-2-(1-hydroxyethylideneamino)-3-(1H-imidazol-5-yl)propylidene]amino]-3-phenylpropylidene]amino]pentylidene]amino]-1-hydroxy-3-(1H-indol-3-yl)propylidene]amino]ethoxy]ethoxy]ethyl]-N'-[(2S)-1-[(2R)-1-[(2S)-5-carbamimidamido-1-hydroxy-1-[(2S)-1-hydroxy-1-imino-3-(1H-indol-3-yl)propan-2-yl]iminopentan-2-yl]imino-1-hydroxy-3-phenylpropan-2-yl]imino-1-hydroxy-3-(1H-imidazol-5-yl)propan-2-yl]butanediimidic acid