COMPOUND OR PHARMACEUTICALLY ACCEPTABLE SALT THEREOF, AND CONTRAST MEDIUM FOR OPTICAL IMAGING

摘要

PROBLEM TO BE SOLVED: To provide a compound with a high tumor accumulation rate or a pharmaceutically acceptable salt thereof, and a contrast medium for optical imaging.SOLUTION: The present invention provides a compound having polyethylene glycol covalently linked with at least one specific organic dye, or a pharmaceutically acceptable salt thereof.SELECTED DRAWING: None