P1304MP – Propidium Iodide

P1304MP – Propidium Iodide

INR 17,379.00


  • For Use With (Equipment): Flow Cytometer, Fluorescence Microscope
  • Cell Permeability: Cell-Impermeant
  • Sub-Cellular Localization: Cytoplasm & Cytosol
  • Detection Method: Fluorescent
  • Excitation⁄Emission (nm): 535⁄ 617
  • Flow Cytometer Laser Lines: 488
  • Form: Solution
  • Label or Dye: propidium iodide
  • Product Size: 100 mg
  • Shipping Condition: Room Temperature


Propidium iodide (PI) is a popular red-fluorescent nuclear and chromosome counterstain. Since propidium iodide is not permeant to live cells, it is also commonly used to detect dead cells in a population.

PI binds to DNA by intercalating between the bases with little or no sequence preference. In aqueous solution, the dye has excitation/emission maxima of 493/636 nm. Once the dye is bound, its fluorescence is enhanced 20- to 30-fold, the fluorescence excitation maximum is shifted ~30–40 nm to the red and the fluorescence emission maximum is shifted ~15 nm to the blue, resulting in an excitation maximum at 535 nm and fluorescence emission maximum at 617 nm.

PI is widely used in fluorescence microscopy, confocal laser scanning microscopy, flow cytometry, and fluorometry.

Contents & storage

Contains 1 vial propidium iodide (100 mg).

Store at room temperature and protect from light.


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