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QIA91 Caspase-3 Detection Kit (FITC-DEVD-FMK)

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Key Specifications Table

Detection Methods


Catalog NumberPackaging Qty/Pack
QIA91-1KIT Glass bottle 1 kit
OverviewA convenient and sensitive method for the detection of activated caspase-3 in living cells. The fluorescent marker, FITC-DEVD-FMK, is a cell-permeable, non-toxic inhibitor that binds irreversibly to activated caspase-3 in apoptotic cells. The fluorescence intensity can be measured by fluorescence microscopy, fluorescence plate reader, or flow cytometry.
Catalogue NumberQIA91
Brand Family Calbiochem®
Product Information
Detection methodFluorescence
Form100 Tests
FormatFlow cytometry, fluorescence microscopy
Kit containsLabeled Caspase-3 Inhibitor (FITC-DEVD-FMK), Wash Buffer, Caspase-3 Inhibitor (Z-VAD-FMK), and a user protocol.
Quality LevelMQ100
Biological Information
Assay time1.5 h
Sample TypeCultured cells
Species Reactivity
  • A Broad Range Of Species
Physicochemical Information
Emission max.
Excitation max.
Materials Information
Toxicological Information
Safety Information according to GHS
Safety Information
R PhraseR: 36/37/38

Irritating to eyes, respiratory system and skin.
S PhraseS: 23-26-36

Do not breathe fumes.
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
Wear suitable protective clothing.
Product Usage Statements
Storage and Shipping Information
Ship Code Dry Ice Only
Toxicity Multiple Toxicity Values, refer to MSDS
Storage -20°C
Avoid freeze/thaw Avoid freeze/thaw
Do not freeze Ok to freeze
Packaging Information
Transport Information
Supplemental Information
Kit containsLabeled Caspase-3 Inhibitor (FITC-DEVD-FMK), Wash Buffer, Caspase-3 Inhibitor (Z-VAD-FMK), and a user protocol.
Global Trade Item Number
Catalog Number GTIN
QIA91-1KIT 04055977209211


Caspase-3 Detection Kit (FITC-DEVD-FMK) SDS


Safety Data Sheet (SDS) 

Caspase-3 Detection Kit (FITC-DEVD-FMK) Certificates of Analysis

TitleLot Number


The Active Siteル Volume 4, Number 1


  • Yumin Zhang, et al. (2004) Peroxynitrite-Induced Neuronal Apoptosis is Mediated by Intracellular Zinc Release and 12-Lipoxygenase Activation. Journal of Neuroscience 24, 10616-10627.
  • User Protocol

    Revision13-November-2008 JSW
    Form100 Tests
    FormatFlow cytometry, fluorescence microscopy
    Detection methodFluorescence
    Speciesa broad range of species
    BackgroundThe activation of caspases plays a central role in apoptosis. The Caspase-3 Detection Kit provides a convenient and sensitive means for detecting activated caspase-3 in situ in living cells. The assay utilizes a caspase-3 inhibitor (DEVD-FMK) conjugated to FITC as the fluorescent in situ marker. FITC-DEVD-FMK is cell permeable, nontoxic, and irreversibly binds to activated caspase-3 in apoptotic cells. The FITC label allows for direct detection of activated caspase-3 in apoptotic cells by fluorescence microscopy, flow cytometry, or fluorescence plate reader.
    Materials provided• FITC-DEVD-FMK (Kit Component No. JA5700-100UL): 1 vial, 100 µl
    • Wash Buffer (Kit Component No. JA5701-100ML): 2 bottles, 100 ml
    • Z-VAD-FMK (Kit Component No. JA5702-10UL): 1 vial, 10 µl
    Detailed protocolA. Staining Procedure

    1. Induce apoptosis in cells (1 x 106/ ml) by desired method. Concurrently incubate a control culture without induction. An additional control can be prepared by adding the caspase-3 inhibitor Z-VAD-FMK at 1 µl/ml to an induced culture to inhibit caspase-3 activation.
    2. Aliquot 300 µl each of the induced and control cultures into microfuge tubes.
    3. Add 1 µl of FITC-DEVD-FMK to each tube and incubate for 0.5-1 h in a 37°C incubator with 5% CO2.
    4. Centrifuge cells at 3000 rpm for 5 min and remove supernatant.
    5. Resuspend cells in 0.5 ml of Wash Buffer and centrifuge again.
    6. Repeat step 5.
    7. Proceed to B, C, or D, depending upon method of analysis.

    B. Quantification by Flow Cytometry

    For flow cytometric analysis, resuspend cells in 300 µl of Wash buffer. Put samples on ice. Analyze samples by flow cytometry using the FL-1 channel.

    C. Detection by Fluorescence Microscopy

    For fluorescence microscopic analysis, resuspend cells in 100 µl Wash Buffer. Put one drop of the cell suspension onto a microslide and cover with a coverslip. Observe cells under the fluorescence microscope using a FITC filter. Caspase-3 positive cells appear to have brighter green signals, whereas caspase-3 negative control cells show much weaker signal.

    D. Analysis by Fluorescence Plate Reader
    For analysis with a fluorescence plate reader, resuspend cells in 100 µl Wash Buffer and transfer the cell suspension to each well of the black plate. Measure the fluorescence intensity at Ex. = ~485 nm and Em. = ~535 nm. For a control, use wells containing unlabeled cells.
    Registered TrademarksCalbiochem® is a registered trademark of EMD Chemicals, Inc.
    Interactive Pathways™ is a trademark of EMD Chemicals, Inc.