Fluo-4 Direct Calcium Assay Kit

Fluo-4 Direct Calcium Assay Kit

For Research Use Only. Not For Clinical Use.

Catalog Number: ION0029

Product Size Price
10 × 10 mL Online Inquiry
1 × 100 mL Online Inquiry
1 × 1 L Online Inquiry


  • Detection Method:
  • Fluorescent
  • Component:
  • • Component A: 1 L Fluo-4 Direct Calcium Assay Reagent
    • Component B: 1.54 g Probenecid
  • Shipping Condition:
  • Room Temperature
  • Storage:
  • Store at -20°C or lower. Desiccated and protect from light.
  • Cell Permeability:
  • Cell-Permeant
  • Applicable Equipment:
  • Confocal Microscope, Fluorescence Microscope, Fluorescent Imager, HTS Reader, High Content Instrument, Microplate Reader
  • Indicator Type:
  • Calcium Indicator
  • Indicator Properties:
  • Fluorescent Dye-Based
  • Color:
  • Green
  • Sub-Cellular Localization:
  • Cytoplasm, Nucleus, Organelles
  • Emission Class:
  • Visible
  • Excitation Class:
  • Visible
  • Excitation⁄Emission (nm):
  • 488⁄530


  • The Fluo-4 Direct Calcium Assay Kit can provide a homogeneous fluorescent calcium assay and achieve a large assay window. This kit is similar to Fluo-4 No-Wash Calcium Assay Kit. Both of them are formulated for ease in cell loading. However, the unique feature of the Fluo-4 Direct Calcium Assay Kit is that there is no background fluorescence problem of complete cell culture media.