Calbryte™ 520 AM
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Telephone | 1-800-990-8053 |
Fax | 1-800-609-2943 |
sales@aatbio.com | |
International | See distributors |
Bulk request | Inquire |
Custom size | Inquire |
Shipping | Standard overnight for United States, inquire for international |
Dissociation constant (Kd, nM) | 1200 |
Molecular weight | 1090.90 |
Solvent | DMSO |
Excitation (nm) | 493 |
Emission (nm) | 515 |
Quantum yield | 0.751 |
Certificate of Origin | Download PDF |
H-phrase | H303, H313, H333 |
Hazard symbol | XN |
Intended use | Research Use Only (RUO) |
R-phrase | R20, R21, R22 |
Storage | Freeze (< -15 °C); Minimize light exposure |
UNSPSC | 12352200 |
Overview | ![]() ![]() |
Molecular weight 1090.90 | Dissociation constant (Kd, nM) 1200 | Excitation (nm) 493 | Emission (nm) 515 | Quantum yield 0.751 |
Platform
Flow cytometer
Excitation | 488 nm laser |
Emission | 530/30 nm filter |
Instrument specification(s) | FITC channel |
Fluorescence microscope
Excitation | FITC |
Emission | FITC |
Recommended plate | Black wall/clear bottom |
Fluorescence microplate reader
Excitation | 490 |
Emission | 525 |
Cutoff | 515 |
Recommended plate | Black wall/clear bottom |
Instrument specification(s) | Bottom read mode/Programmable liquid handling |
Example protocol
PREPARATION OF STOCK SOLUTIONS
Unless otherwise noted, all unused stock solutions should be divided into single-use aliquots and stored at -20 °C after preparation. Avoid repeated freeze-thaw cycles
Prepare a 2 to 5 mM stock solution of Calbryte™ 520 AM in anhydrous DMSO.
Note: When reconstituted in DMSO, Calbryte™ 520 AM is a clear, colorless solution.
PREPARATION OF WORKING SOLUTION
On the day of the experiment, either dissolve Calbryte™ 520 AM in DMSO or thaw an aliquot of the indicator stock solution to room temperature.
Prepare a 2 to 20 µM Calbryte™ 520 AM working solution in a buffer of your choice (e.g., Hanks and Hepes buffer) with 0.04% Pluronic® F-127. For most cell lines, Calbryte™ 520 AM at a final concentration of 4-5 μM is recommended. The exact concentration of indicators required for cell loading must be determined empirically.
Note: The nonionic detergent Pluronic® F-127 is sometimes used to increase the aqueous solubility of Calbryte™ 520 AM. A variety of Pluronic® F-127 solutions can be purchased from AAT Bioquest.
Note: If your cells contain organic anion-transporters, probenecid (1-2 mM) may be added to the dye working solution (final in well concentration will be 0.5-1 mM) to reduce leakage of the de-esterified indicators. A variety of ReadiUse™ Probenecid products, including water-soluble, sodium salt, and stabilized solutions, can be purchased from AAT Bioquest.
SAMPLE EXPERIMENTAL PROTOCOL
Following is our recommended protocol for loading AM esters into live cells. This protocol only provides a guideline and should be modified according to your specific needs.
- Prepare cells in growth medium overnight.
On the next day, add 1X Calbryte™ 520 AM working solution to your cell plate.
Note: If your compound(s) interfere with the serum, replace the growth medium with fresh HHBS buffer before dye-loading.
Incubate the dye-loaded plate in a cell incubator at 37 °C for 30 to 60 minutes.
Note: Incubating the dye for longer than 1 hour can improve signal intensities in certain cell lines.
- Replace the dye working solution with HHBS or buffer of your choice (containing an anion transporter inhibitor, such as 1 mM probenecid, if applicable) to remove any excess probes.
- Add the stimulant as desired and simultaneously measure fluorescence using either a fluorescence microscope equipped with a FITC filter set or a fluorescence plate reader containing a programmable liquid handling system such as an FDSS, FLIPR, or FlexStation, at Ex/Em = 490/525 nm cutoff 515 nm.
Calculators
Common stock solution preparation
0.1 mg | 0.5 mg | 1 mg | 5 mg | 10 mg | |
1 mM | 91.667 µL | 458.337 µL | 916.674 µL | 4.583 mL | 9.167 mL |
5 mM | 18.333 µL | 91.667 µL | 183.335 µL | 916.674 µL | 1.833 mL |
10 mM | 9.167 µL | 45.834 µL | 91.667 µL | 458.337 µL | 916.674 µL |
Molarity calculator
Mass (Calculate) | Molecular weight | Volume (Calculate) | Concentration (Calculate) | Moles | ||||
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Spectrum

Spectral properties
Excitation (nm) | 493 |
Emission (nm) | 515 |
Quantum yield | 0.751 |
Product Family
Name | Excitation (nm) | Emission (nm) |
Calbryte™ 590 AM | 581 | 593 |
Calbryte™ 630 AM | 607 | 624 |
Calbryte™-520L AM | 493 | 515 |
Calbryte™-520XL AM | 493 | 515 |
Cal-520®, AM | 493 | 515 |
Mag-520™ AM | 506 | 525 |
SoNa™ 520 AM | 491 | 511 |
Images


Citations
Authors: Sun, Jie and Tong, Yingying and Jia, Yu and Jia, Xu and Wang, Hua and Chen, Yang and Wu, Jiamin and Jin, Weiyang and Ma, Zheng and Cao, Kai and others,
Journal: Scientific Reports (2023): 6989
Authors: Stogova, Ekaterina
Journal: (2023)
Authors: Panzer, Julia K and Caicedo, Alejandro
Journal: STAR Protocols (2023): 102399
Authors: Buchmann, Sebastian and Enrico, Alessandro and Holzreuter, Muriel Alexandra and Reid, Michael and Zeglio, Erica and Niklaus, Frank and Stemme, G{\"o}ran and Herland, Anna
Journal: Materials Today Bio (2023): 100706
Authors: Wang, Yingqiao and Hartung, Jane E and Goad, Adam and Preisegger, Mat{\'\i}as A and Chacon, Benjamin and Gold, Michael S and Gogotsi, Yury and Cohen-Karni, Tzahi
Journal: Advanced Healthcare Materials (2023): 2302330
Authors: Bin, Na-Ryum and Prescott, Sara L and Horio, Nao and Wang, Yandan and Chiu, Isaac M and Liberles, Stephen D
Journal: Nature (2023): 1--8
Authors: Perniss, Alexander and Boonen, Brett and Tonack, Sarah and Thiel, Moritz and Poharkar, Krupali and Alnouri, Mohamad Wessam and Keshavarz, Maryam and Papadakis, Tamara and Wiegand, Silke and Pfeil, Uwe and others,
Journal: Science Advances (2023): eadg8842
Authors: Del Bondio, Andrea and Longo, Fabiana and De Ritis, Daniele and Spirito, Erica and Podini, Paola and Brais, Bernard and Bachi, Angela and Quattrini, Angelo and Maltecca, Francesca
Journal: JCI insight (2023)
Authors: Trefny, Marcel P and Kirchhammer, Nicole and Auf der Maur, Priska and Natoli, Marina and Schmid, Dominic and Germann, Markus and Fernandez Rodriguez, Laura and Herzig, Petra and L{\"o}tscher, Jonas and Akrami, Maryam and others,
Journal: Nature Communications (2023): 86
Authors: {\v{S}}terk, Marko and Dolen{\v{s}}ek, Jurij and Klemen, Ma{\v{s}}a Skelin and Bombek, Lidija Krizancic and Leitgeb, Eva Paradiz and Kercmar, Jasmina and Perc, Matjaz and Rupnik, Marjan Slak and Stozer, Andraz and Gosak, Marko
Journal: (2023)
References
Authors: Wu, Yanjiao and Xu, Xiaoli and Ma, Lunkun and Yi, Qian and Sun, Weichao and Tang, Liling
Journal: The International Journal of Biochemistry & Cell Biology (2017)
Authors: Lu, Jiang and Yao, Xue-qin and Luo, Xin and Wang, Yu and Chung, Sookja Kim and Tang, He-xin and Cheung, Chi Wai and Wang, Xian-yu and Meng, Chen and Li, Qing and others, undefined
Journal: Neural Regeneration Research (2017): 945
Authors: Yang, Gang and Xiao, Zhenghua and Ren, Xiaomei and Long, Haiyan and Ma, Kunlong and Qian, Hong and Guo, Yingqiang
Journal: Scientific Reports (2017): 41781
Authors: Liu, Jia and Du, Qing and Zhu, He and Li, Yu and Liu, Maodong and Yu, Shoushui and Wang, Shilei
Journal: Int J Clin Exp Med (2017): 6861--6868
Authors: Sun, Xia and Lin, Yi and Huang, Qiansheng and Shi, Junpeng and Qiu, Ling and Kang, Mei and Chen, Yajie and Fang, Chao and Ye, Ting and Dong, Sijun
Journal: Journal of cellular and molecular medicine (2015): 581--594
Authors: Zhao, Lantao and Li, Shuhong and Wang, Shilei and Yu, Ning and Liu, Jia
Journal: Biochemical and biophysical research communications (2015): 537--542
Authors: Liang, Nan and Wang, Peng and Wang, Shilei and Li, Shuhong and Li, Yu and Wang, Jinying and Wang, Min
Journal: Journal of Neural Transmission (2014): 593--600
Authors: Li, Qing and Lu, Jiang and Wang, Xianyu and others, undefined
Journal: Neural regeneration research (2014): 2002
Authors: Peng, Xu-Dong and Zhao, Gui-Qiu and Lin, Jing and Jiang, Nan and Xu, Qiang and Zhu, Cheng-Cheng and Qu, Jain-Qiu and Cong, Lin and Li, Hui
Journal: International journal of ophthalmology (2014): 441--447
Authors: Hagiyama, M and Inoue, T and Furuno, T and Iino, T and Itami, S and Nakanishi, M and Asada, H and Hosokawa, Y and Ito, A
Journal: British Journal of Dermatology (2013): 771--778
Application notes
FAQ
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