fish

Erythrosine B (Erythrosine I) , a tetraiodofluorescein, is served as a red coloring in some foods (cherries, fish), as a disclosure of dental plaque, and as a stain of some cell types. Its structural was similar to thyroxine.

ATTO 488 iodacetamid, a fluorescent dye, excels in applications requiring single molecule detection and high-resolution microscopy, including flow cytometry (FACS) and fluorescence in situ hybridization (FISH) experiments. It offers an effective excitation wavelength range of 480-515 nm, with a recommended wavelength of 488 nm when using an argon ion laser.