Patent ID: 8679455

Claim:
A compound of formula (V) or (VI): wherein L1, L2, L3, and L4 are each independently a C 1-60 hydrocarbyl group optionally including 1 to 30 heteroatoms, which is optionally substituted with one or more groups selected from ether, thiooether, sulphonamide, amide, amino acid, carbohydrate, or monomers and polymers comprising ethyleneglycol; R* is a reporter moiety selected from the group consisting of radionuclides and radionuclides incorporated into a chelating agent wherein said chelating agent is a chelating agent of Formula X: where: each R 1A , R 2A , R 3A and R 4A is independently an R A group; each R A group is independently H or C 1-10 alkyl, C 3-10 alkylaryl, C 2-10 alkoxyalkyl, C 1-10 hydroxyalkyl, C 1-10 alkylamine, C 1-10 fluoroalkyl, or 2 or more R A groups, together with the atoms to which they are attached form a carbocyclic, heterocyclic, saturated or unsaturated ring; and vector is a peptide, protein, hormone, cell, bacterium, or virus.