Fura Red, potassium salt
Ordering information
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Additional ordering information
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 |
Physical properties
Dissociation constant (Kd, nM) | 400 |
Molecular weight | 808.98 |
Solvent | Water |
Spectral properties
Excitation (nm) | 435 |
Emission (nm) | 639 |
Storage, safety and handling
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 | SDSProtocol |
See also: Calcium Indicators, Ratiometric Calcium Indicators
Molecular weight 808.98 | Dissociation constant (Kd, nM) 400 | Excitation (nm) 435 | Emission (nm) 639 |
Fura Red is a visible light-excitable fura-2 analog that offers unique possibilities for ratiometric measurement of calcium ion in single cells by microphotometry, imaging or flow cytometry when used with single excitation, green-fluorescent calcium indicators. Fura Red AM is the cell-permeable version of Fura Red used for noninvasive intracellular loading. Fura Red AM can be simultaneously loaded into cells with Fluo-3 AM, Fluo-8 AM or Cal-520 AM. An advantage of combining two calcium dyes is that dyes with longer excitation wavelengths can be used. This usually causes less harm to the cells than using ratiometric dyes that are excited with UV- or near UV-light (e.g. Fura-2), as light at visible wavelengths is less phototoxic.
Calculators
Common stock solution preparation
Table 1. Volume of Water needed to reconstitute specific mass of Fura Red, potassium salt to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.
0.1 mg | 0.5 mg | 1 mg | 5 mg | 10 mg | |
1 mM | 123.612 µL | 618.062 µL | 1.236 mL | 6.181 mL | 12.361 mL |
5 mM | 24.722 µL | 123.612 µL | 247.225 µL | 1.236 mL | 2.472 mL |
10 mM | 12.361 µL | 61.806 µL | 123.612 µL | 618.062 µL | 1.236 mL |
Molarity calculator
Enter any two values (mass, volume, concentration) to calculate the third.
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References
View all 12 references: Citation Explorer
Ratiometric analysis of fura red by flow cytometry: a technique for monitoring intracellular calcium flux in primary cell subsets
Authors: Wendt ER, Ferry H, Greaves DR, Keshav S.
Journal: PLoS One (2015): e0119532
Authors: Wendt ER, Ferry H, Greaves DR, Keshav S.
Journal: PLoS One (2015): e0119532
A flow cytometric comparison of Indo-1 to fluo-3 and Fura Red excited with low power lasers for detecting Ca(2+) flux
Authors: Bailey S, Macardle PJ.
Journal: J Immunol Methods (2006): 220
Authors: Bailey S, Macardle PJ.
Journal: J Immunol Methods (2006): 220
Use of co-loaded Fluo-3 and Fura Red fluorescent indicators for studying the cytosolic Ca(2+)concentrations distribution in living plant tissue
Authors: Walczysko P, Wagner E, Albrechtova JT.
Journal: Cell Calcium (2000): 23
Authors: Walczysko P, Wagner E, Albrechtova JT.
Journal: Cell Calcium (2000): 23
Monitoring calcium in outer hair cells with confocal microscopy and fluorescence ratios of fluo-3 and fura-red
Authors: Su ZL, Li N, Sun YR, Yang J, Wang IM, Jiang SC.
Journal: Shi Yan Sheng Wu Xue Bao (1998): 323
Authors: Su ZL, Li N, Sun YR, Yang J, Wang IM, Jiang SC.
Journal: Shi Yan Sheng Wu Xue Bao (1998): 323
Problems associated with using Fura-2 to measure free intracellular calcium concentrations in human red blood cells
Authors: Blackwood AM, Sagnella GA, Mark and u ND, MacGregor GA.
Journal: J Hum Hypertens (1997): 601
Authors: Blackwood AM, Sagnella GA, Mark and u ND, MacGregor GA.
Journal: J Hum Hypertens (1997): 601
Calcium transient alternans in blood-perfused ischemic hearts: observations with fluorescent indicator fura red
Authors: Wu Y, Clusin WT.
Journal: Am J Physiol (1997): H2161
Authors: Wu Y, Clusin WT.
Journal: Am J Physiol (1997): H2161
IgG-induced Ca2+ oscillations in differentiated U937 cells; a study using laser scanning confocal microscopy and co-loaded fluo-3 and fura-red fluorescent probes
Authors: Floto RA, Mahaut-Smith MP, Somasundaram B, Allen JM.
Journal: Cell Calcium (1995): 377
Authors: Floto RA, Mahaut-Smith MP, Somasundaram B, Allen JM.
Journal: Cell Calcium (1995): 377
Localization of calcium entry through calcium channels in olfactory receptor neurones using a laser scanning microscope and the calcium indicator dyes Fluo-3 and Fura-Red
Authors: Schild D, Jung A, Schultens HA.
Journal: Cell Calcium (1994): 341
Authors: Schild D, Jung A, Schultens HA.
Journal: Cell Calcium (1994): 341
Improved sensitivity in flow cytometric intracellular ionized calcium measurement using fluo-3/Fura Red fluorescence ratios
Authors: Novak EJ, Rabinovitch PS.
Journal: Cytometry (1994): 135
Authors: Novak EJ, Rabinovitch PS.
Journal: Cytometry (1994): 135
The distribution of intracellular calcium chelator (fura-2) in a population of intact human red cells
Authors: Lew VL, Etzion Z, Bookchin RM, daCosta R, Vaananen H, Sassaroli M, Eisinger J.
Journal: Biochim Biophys Acta (1993): 152
Authors: Lew VL, Etzion Z, Bookchin RM, daCosta R, Vaananen H, Sassaroli M, Eisinger J.
Journal: Biochim Biophys Acta (1993): 152
Application notes
A New Robust No-Wash FLIPR Calcium Assay Kit for Screening GPCR and Calcium Channel Targets
A Novel NO Wash Probeniceid-Free Calcium Assay for Functional Analysis of GPCR and Calcium Channel Targets
Evaluation of FLIPR Calcium Assays for Screening GPCR and Calcium Channel Targets
Fluorescent Dye AM Esters
Novel Red Fluorescent Calcium Probes for Functional Analysis of GPCRs and Calcium Channel Targets
A Novel NO Wash Probeniceid-Free Calcium Assay for Functional Analysis of GPCR and Calcium Channel Targets
Evaluation of FLIPR Calcium Assays for Screening GPCR and Calcium Channel Targets
Fluorescent Dye AM Esters
Novel Red Fluorescent Calcium Probes for Functional Analysis of GPCRs and Calcium Channel Targets
FAQ
How does Fura red work?
What are the differences between calcium ion indicators: Cal 520, Cal 520FF, and Cal 520N?
How do I make an AM ester stock solution?
How do you measure Ca2+ response with calcium indicators like Calbryte 520, potassium salt?
Can I intracellularly measure mitochondria calcium flux and changes in mitochondria membrane potential at the same time?
What are the differences between calcium ion indicators: Cal 520, Cal 520FF, and Cal 520N?
How do I make an AM ester stock solution?
How do you measure Ca2+ response with calcium indicators like Calbryte 520, potassium salt?
Can I intracellularly measure mitochondria calcium flux and changes in mitochondria membrane potential at the same time?