Synonyms: 11,14,20,23-Tetraoxa-2,8,17,26,31-pentaazanonatetracontanedioic acid, 3-carboxy-30-[(1,1-dimethylethoxy)carbonyl]-9,18,27,32-tetraoxo-, 49-(1,1-dimethylethyl) 1-(9H-fluoren-9-ylmethyl) ester,; 11,14,20,23-Tetraoxa-2,8,17,26,31-pentaazanonatetracontanedioic acid, 3-carboxy-30-[(1,1-dimethylethoxy)carbonyl]-9,18,27,32-tetraoxo-, 49-(1,1-dimethylethyl) 1-(9H-fluoren-9-ylmethyl) ester, (3S,30S)-; 22-(tert-butoxycarbonyl)-43,43-dimethyl-10,19,24,41-tetraoxo-3,6,12,15,42-pentaoxa-9,18,23-triazatetratetracontanoic acid; Fmoc-Lys(tBu-OOC-C16-CO-Glu(AEEA-AEEA)-OtBu)-OH; Octa(OtBu)-Glu(ɑ-OtBu)-AEEA-AEEA-OH;