Applications

Cardiogreen is a negatively charged polymethine dye that forms noncovalent fluorescent complexes with proteins. This \"pseudofluorogenic\" property has been utilized for protein determination by capillary electrophoresis with diode laser-induced fluorescence detection.¹ Cardiogreen has been used to resolve several labeled proteins including: human serum albumin, ribonuclease A, transferrin, and cytochrome c.