英文名称
2-[(1S,4S,10S,13R,14S,16S)-14-[[[2-[4-(carboxymethyl)-7,10-diethyl-1,4,7,10-tetrazacyclododec-1-yl]acetyl]amino]methyl]-4-[3-(diaminomethylideneamino)propyl]-2,5,8,11,20-pentaoxo-3,6,9,12,19-pentazatricyclo[11.5.2.016,19]icosan-10-yl]acetic acid