Products
Services
Resources
Selection Guides
About
Calcium Indicators
AAT Bioquest offers the largest selection of calcium indicators, with options for different modalities, binding affinities, and emission colors to optimally fit your experimental needs.
0
Total Products
0
Emission Colors
0
Binding Affinities
Browse Calcium Indicator by Popular Features
Filter by Keyword
Product Family
Product Form
Modality
Binding Affinity (Kd)
Emission Color
No Probenecid Required
Excitation Wavelength
200 nm
900 nm
Kits
No Wash
Emission Wavelength
200 nm
900 nm
Loading...
Sort By:
Recommended
BTC, tetrapotassium salt CAS 216453-54-2
Catalog Number: 21053
Modality
Ratiometric
Excitation/Emission (nm)
-
Kd (nM)
7000
Cal Green™ 1, hexapotassium salt
Catalog Number: 20500
Modality
Single-wavelength
Excitation/Emission (nm)
498/517
Kd (nM)
190
Cal Red™ R525/650 potassium salt
Catalog Number: 20588
Modality
Ratiometric
Excitation/Emission (nm)
-
Kd (nM)
330
Cal-500™, potassium salt
Catalog Number: 20410
Modality
Single-wavelength
Excitation/Emission (nm)
388/482
Kd (nM)
303
Cal-520®, potassium salt
Catalog Number: 21140, 21141
Modality
Single-wavelength
Excitation/Emission (nm)
492/515
Kd (nM)
320
Cal-520®, sodium salt
Catalog Number: 21135, 21136
Modality
Single-wavelength
Excitation/Emission (nm)
492/515
Kd (nM)
320
Cal-520ER™ potassium salt
Catalog Number: 21132, 21148
Modality
Single-wavelength
Excitation/Emission (nm)
492/515
Kd (nM)
90000
Cal-520FF™, potassium salt
Catalog Number: 21144
Modality
Single-wavelength
Excitation/Emission (nm)
492/515
Kd (nM)
9800
Cal-520N™, potassium salt
Catalog Number: 21147
Modality
Single-wavelength
Excitation/Emission (nm)
492/515
Kd (nM)
90000
Learn More
AAT Bioquest offers the largest portfolio of calcium indicators, with over one hundred unique reagents, cited in tens of thousands of publications. The table below offers a few example applications. To learn more about how to select the optimal indicator for your experiment, please see our Calcium Indicators catalog.
| What you're studying | What you're measuring | AAT Bioquest products to consider |
|---|---|---|
| Neuronal activity | Spontaneous activity, stimulus responses, and neuronal calcium transients | Cal-520® AM; Cal-590™ AM when combining calcium imaging with GFP. |
| Cardiac calcium handling | Beat-associated transients and changes in calcium release and recovery | Cal-520® AM or Calbryte™ 520 AM; evaluate signal kinetics and saturation in your model. |
| Immune-cell activation | Calcium flux after receptor stimulation in defined cell populations | Calbryte™ 520 AM for green-channel flow cytometry; Calbryte™ 630 AM for a compatible red-laser configuration. |
| Drug screening and receptor/channel assays | Compound-induced calcium responses and concentration–response curves | Screen Quest™ Calbryte™ 520 or Screen Quest™ Fluo-8® assays for streamlined, no-wash screening. |
| Calcium-store release and entry | Cytosolic calcium changes following store depletion or extracellular calcium addition | Fura-8™ AM for ratiometric measurements; Calbryte™ 520 AM for relative fluorescence changes. |
Resources & Tools
Calcium Indicators
Learn about the different factors when selecting an optimal calcium indicator
View Catalog
Cal-520® and Other Cal™ Indicators
Explore our Cal-520® and Other Cal™ Indicators digital catalog
View Catalog