Propidium iodide

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Cat.No. 5135 - Propidium iodide | C27H34I2N4 | CAS No. 25535-16-4
Description: Red-fluorescent DNA stain; membrane impermeant to live cells. Pi staining differentiates live and dead cells
Alternative Names: PI
Chemical Name: 3,8-Diamino-5-[3-(diethylmethylammonio)propyl]-6-phenylphenanthridinium diiodide
Purity: ≥95% (HPLC)
Literature (1)

Biological Activity

Red-fluorescent DNA stain. Membrane impermeant to live cells. Propidium iodide staining differentiates between live and dead cells in cell populations.

Optical Data for Propidium iodide

λabs 535 nm
λem 617 nm
Application Flow Cytometry

Technical Data

M. Wt 668.39
Formula C27H34I2N4
Storage Store at -20°C
Purity ≥95% (HPLC)
CAS Number 25535-16-4
PubChem ID 104981
Smiles NC4=CC1=C(C=C4)C3=C(C=C(N)C=C3)[N+](CCC[N+](CC)(CC)C)=C1C2=CC=CC=C2.[I-].[I-]

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

Tocris products are intended for laboratory research use only, unless stated otherwise.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
water 3.34 5 with sonication

Preparing Stock Solutions

The following data is based on the product molecular weight 668.39. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
0.05 mM 29.92 mL 149.61 mL 299.23 mL
0.25 mM 5.98 mL 29.92 mL 59.85 mL
0.5 mM 2.99 mL 14.96 mL 29.92 mL
2.5 mM 0.6 mL 2.99 mL 5.98 mL

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References are publications that support the biological activity of the product.

Jeong et al (2013) SIRT4 protein suppresses tumor formation in genetic models of Myc-induced B cell lymphoma. J.Biol.Chem. 289 4135 PMID: 24368766

Sonnemann et al (2014) p53-dependent and p53-independent anticancer effects of different histone deacetylase inhibitors. Br.J.Cancer 110 656 PMID: 24281001

Yun et al (2013) Serine hydrolase inhibitors block necrotic cell death by preventing calcium overload of the mitochondria and permeability transition pore formation. J.Biol.Chem. 289 1491 PMID: 24297180

If you know of a relevant reference for Propidium iodide, please let us know.

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Citations for Propidium iodide

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Literature in this Area

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