COMPOSITION FOR MEDICAL USE HAVING IMPROVED WATER-SOLUBILITY OF PEPTIDE AND METAL-LABELING EFFICIENCY AND PREPARATION FOR MEDICAL USE COMPRISING METAL-LABELED PEPTIDE

摘要

By preliminarily dissolving a basic organic compound in an aqueous solvent in which a peptide usable in metal-labeling is to be dissolved, the solubility of the peptide is improved and thus metal-labeling can be carried out without heating. A composition for medical use containing a peptide usable in metal-labeling and a basic organic compound acceptable as a pharmaceutical additive can be utilized as a preparation useful in image diagnosis, radiotherapy and so on.