(4-(3-(3-carboxy-2-(4-chlorophenyl)propyl)ureido)-3-(4-chlorophenyl)butanoyl)holmium; 4,4'-(carbonylbis(azanediyl))bis(3-(4-chlorophenyl)butanoic acid)
(4-(3-(3-carboxy-2-(4-chlorophenyl)propyl)ureido)-3-(4-chlorophenyl)butanoyl)holmium; 4,4'-(carbonylbis(azanediyl))bis(3-(4-chlorophenyl)butanoic acid)