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CF®488A Annexin V and PI Apoptosis Kit

This kit contains CF®488A Annexin V to stain apoptotic cells and Propidium Iodide (PI) to stain necrotic cells.

Product Attributes

Apoptosis/viability marker

Phosphatidylserine/Annexin V, Dead cell stain, Apoptosis/necrosis assay

For live or fixed cells

For live/intact cells

Detection method/readout

Fluorescence microscopy, Flow cytometry

Assay type/options

Endpoint assay



Product origin

Annexin V (human); recombinant, produced in E. coli

Catalog #
100 assays
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Product Description

Phosphatidylserine (PS) is translocated from the inner to the outer surface of the cell for phagocytic cell recognition. The human anticoagulant, Annexin V, is a 35 kDa Ca2+-dependent phospholipid protein with a high affinity for PS. Annexin V labeled with CF®488A (Abs/Em= 490/515 nm) can identify apoptotic cells in green by binding to PS exposed on the outer leaflet. Our CF®488A dye is superior to fluorescein/FITC as it is not affected by pH and has much better photostability. Propidium iodide (PI) is impermeant to live cells or early apoptotic cells, but stains necrotic cells and late apoptotic cells with red fluorescence (Abs/Em with DNA = 535/617 nm). Both PI and CF®488A Annexin V can be excited using the 488 nm flow cytometry laser line.

Kit Components:

  • CF®488A Annexin V (human; recombinant, produced in E. coli)
  • Propidium Iodide (PI)
  • 5X Annexin Binding Buffer


1. Cell Death and Disease (2014), doi:10.1038/cddis.2013.550

2. Autophagy (2016), doi: 10.1080/15548627.2016.1147667

3. J Young Pharm. (2016), doi: 10.5530/jyp.2016.3.4

4. Molecular Medicine Reports (2017), doi: 10.3892/mmr.2017.6480


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