COMPOUND OR ITS PHARMACEUTICALLY ACCEPTABLE SALT, AND CONTRAST MEDIUM FOR PHOTOACOUSTIC IMAGING HAVING THE COMPOUND OR ITS PHARMACEUTICALLY ACCEPTABLE SALT

摘要

PROBLEM TO BE SOLVED: To provide a compound that is excellent in tumor accumulation or its pharmaceutically acceptable salt, and a contrast medium for optical imaging.SOLUTION: The present invention provides a compound having polyethylene glycol binding to a specific cyanine dye or its pharmaceutically acceptable salt.SELECTED DRAWING: None