Hexidium iodide 

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].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

497.41

C₂₅H₂₈IN₃

211566-66-4

Solid

Brown to reddish brown

CCCCCC[N+]1=C(C2=CC=CC=C2)C3=CC(N)=CC=C3C4=C1C=C(N)C=C4.[I-]

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)

• [1]. Shanmugam BK, et al. Biodegradation of tannery dye effluent using Fenton's reagent and bacterial consortium: A biocalorimetric investigation. J Environ Manage. 2019;242:106-113.  [Content Brief]

  [2]. Holm C, et al. A flow-cytometric gram-staining technique for milk-associated bacteria. Appl Environ Microbiol. 2003;69(5):2857-2863.  [Content Brief]