| abstract |
It is an object of the present invention to provide a compound capable of dyeing cells, having water solubility, a good luminescence efficiency, and a property of transferring a local site from the mitochondria to the nucleus according to the mitochondrial membrane potential. A compound represented by the following formula (1): wherein R 1 represents a C1-C10 alkyl group, Z - represents a counteranion to a pyridinium cation, and X represents a condensed polycyclic group , And the broken line represents a bonding site to the adjacent pyridine ring, provided that the naphthylene group (i) may have an electron-donating group) has water-solubility, , And has a property of transferring a local site from the mitochondria to the nucleus according to the mitochondrial membrane potential, and can be used as a fluorescent dye for staining cells. [Chemical Formula 1] |