Patent ID: 7754879

Claim:
A metal complex-albumin inclusion compound comprising: an albumin; and a compound represented by formula (A): where R 1 denotes a C 1 -C 18 alkyloxy group, a C 1 -C 18 alkylamino group; R 2 denotes a residual group after removal of an amino group and a carboxyl group from an α-amino acid selected from the group consisting of glycine, alanine, valine, leucine and isoleucine; R 3 denotes a C 1 -C 18 alkyloxy group, a C 1 -C 18 alkylamino group, or a peptide having 2-6 α-amino acids selected from the group consisting of glycine, alanine, valine, leucine and isoleucine and having a methoxy group at the C-terminal; each R 4 and each R 5 denote either a methyl group, or a hydrogen atom, a vinyl group, an ethyl group, a 1-methoxyethyl group, a 1-bromoethyl group or a formyl group, wherein, where each R 4 denotes a methyl group, each R 5 denotes a hydrogen atom, a vinyl group, an ethyl group, a 1-methoxyethyl group, 1-bromoethyl group or a formyl group, and where each R 4 denotes a hydrogen atom, a vinyl group, an ethyl group, a 1-methoxyethyl group, a 1-bromoethyl group or a formyl group, each R 5 denotes a methyl group; M denotes Fe or Co; X − denotes a halogen ion; and n which denotes the number of X is the number obtained by subtracting 2 from the valency of the transition metal ion, wherein the compound is included in the albumin.