Propidium |
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| Propidium Diiodide; Propidium Iodide; Diiodide, Propidium; Iodide, Propidium | |
| Quaternary ammonium analog of ethidium; an intercalating dye with a specific affinity to certain forms of DNA and, used as diiodide, to separate them in density gradients; also forms fluorescent complexes with cholinesterase which it inhibits. | |