Hexidium iodide, a fluorescent nucleic binding acid stain (excitation/emission ~ 518/600 nm), permeants to mammalian cells and selectively stains almost all gram-positive bacteria. Hexidium iodide can bind to the DNA of all bacteria after permeabilization by EDTA^[1][2].

Hexidium iodide allows assessment of Gram status by differential absorption through bacterial cell walls, selectively staining gram-positive organisms in suspension^[1].

497.41

Solid

C₂₅H₂₈IN₃

211566-66-4

Room temperature in continental US; may vary elsewhere.

4°C, sealed storage, away from moisture and light

*In solvent : -80°C, 6 months; -20°C, 1 month (sealed storage, away from moisture and light)