IUPAC:(2S)-N-[(1S)-1-{[(1R)-1-{[(1S)-1-({2-[2-({[(1S)-5-{3-[(2S,5R,8S,11S,14R,17S,20R)-5-benzyl-11,14,17,20-tetrakis(3-carbamimidamidopropyl)-8-[(naphthalen-2-yl)methyl]-3,6,9,12,15,18,21-heptaoxo-1,4,7,10,13,16,19-heptaazacyclohenicosan-2-yl]propanamido}-1-carbamoylpentyl]carbamoyl}methoxy)ethoxy]ethyl}carbamoyl)-2-hydroxyethyl]carbamoyl}-3-methylbutyl]carbamoyl}-2-(1H-imidazol-5-yl)ethyl]-2-[(2S,3R)-2-[(2S,3S)-2-[(2S)-2-[(2S,3S)-2-[(2S)-2-[(2,3-dichloropyridin-4-yl)formamido]-3,3-dimethylbutanamido]-3-methylpentanamido]-3-hydroxy-3-methylbutanamido]-3-methylpentanamido]-3-hydroxybutanamido]pentanediamide
IUPAC:(2S)-N-[(1S)-1-{[(1R)-1-{[(1S)-1-({2-[2-({[(1S)-5-{3-[(2S,5R,8S,11S,14R,17S,20R)-5-benzyl-11,14,17,20-tetrakis(3-carbamimidamidopropyl)-8-[(naphthalen-2-yl)methyl]-3,6,9,12,15,18,21-heptaoxo-1,4,7,10,13,16,19-heptaazacyclohenicosan-2-yl]propanamido}-1-carbamoylpentyl]carbamoyl}methoxy)ethoxy]ethyl}carbamoyl)-2-hydroxyethyl]carbamoyl}-3-methylbutyl]carbamoyl}-2-(1H-imidazol-5-yl)ethyl]-2-[(2S,3R)-2-[(2S,3S)-2-[(2S)-2-[(2S,3S)-2-[(2S)-2-[(2,3-dichloropyridin-4-yl)formamido]-3,3-dimethylbutanamido]-3-methylpentanamido]-3-hydroxy-3-methylbutanamido]-3-methylpentanamido]-3-hydroxybutanamido]pentanediamide