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Bio-Rad ReadiDrop™ Propidium Iodide Cell Viability Assay

Commonly used in flow cytometry experiments for excluding dead cells, the propidium iodide solution enters a compromised cell and binds to double-stranded DNA/RNA by intercalating between base pairs.

Designed for ease of use in cell sorting and flow cytometry applications, the ReadiDrop™ propidium iodide cell viability assay removes the traditional manual weighing, pipetting, and dilution steps: simply add 1 or 2 drops of the propidium iodide solution to assess the health of your cells.

Key Benefits of the ReadiDrop Propidium Iodide Cell Viability Assay

Ideal for cell sorting — fluorescent molecules are suspended in PBS without preservatives
Stable at room temperature — keep a bottle of ReadiDrop propidium iodide cell viability assay by your cell sorter or cell analyzer for easy access
No more weighing, pipetting, or diluting — ready-to-use solution to gives 1 µg/ml as the final concentration

Features of the ReadiDrop Propidium Iodide Cell Viability Assay

Fluorophore Properties
- Excitation maximum: 538 nm
- Emission maximum: 617 nm
- Optimal excitation laser: 561 nm or 488 nm

Fluorescent Spectrum

Molecular weight: 668.39 g/mol
Molecular formula: C₂₇H₃₂I₂N₄
Chemical structure

Specifications
- Store at 15–30°C
- Do not freeze

More Information

Learn more about the features of the S3e™ Cell Sorter and its associated consumables and accessories.