Frequently Asked Questions Live Chat and Frequently Asked Questions are available for this Product. Application Useful for staining DNA, chromosomes and nuclei. May be used for fluorescence microscopy or flow cytometry.Excitation max. = 346 nmEmission max. = 460 nm Biochem/physiol Actions Membrane-permeable, fluorescent DNA stains with low cytotoxicity that intercalate in A-T regions of DNA. 包装 1 g in glass bottle 100, 500 mg in glass bottle 25 mg in poly bottle