Acridine orange, hemi salt CAS:10127-02-3

Acridine orange hemi salt is a fluorescent dye commonly used in biology and medicine for various applications, such as staining nucleic acids in cell biology and histology. It is a cationic dye that binds to DNA and RNA, emitting a green fluorescence when bound to double-stranded nucleic acids and a red fluorescence when bound to single-stranded nucleic acids. Acridine orange hemi salt is also used in microbiology for distinguishing between living and dead cells and in the field of hematology for staining blood cells. Additionally, it has been employed in environmental research for assessing bacterial and yeast viability.