NOVEL FLUORESCENT LABELING COMPOUND

摘要

A rare-earth fluorescent complex which forms a fluorescent complex with two or more rare-earth metals such as europium and terbium and can be effectively excited at a wavelength of 340 nm or longer; a fluorescent labeling agent comprising the rare-earth fluorescent complex; a method of fluorescent labeling in which the rare-earth fluorescent complex is used as a labeling agent; and a method of fluorometric analysis in which the fluorescent labeling agent is used. The rare-earth fluorescent complex is characterized by having a cyclic ligand comprising a 4-biphenyl-2,2':6',2"-terpyridine skeleton and a 2,6-bis(3'-aminomethyl-1'-pyrazolyl)pyrazine skeleton bonded thereto.