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iFluor® 540 maleimide

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Telephone1-800-990-8053
Fax1-800-609-2943
Emailsales@aatbio.com
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ShippingStandard overnight for United States, inquire for international
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Physical properties
Molecular weight777.82
SolventDMSO
Storage, safety and handling
H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
StorageFreeze (< -15 °C); Minimize light exposure
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iFluor® 700 amine
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iFluor® 750 amine
iFluor® 350 hydrazide
iFluor® 488 hydrazide
iFluor® 555 hydrazide
iFluor® 647 hydrazide
iFluor® 680 hydrazide
iFluor® 700 hydrazide
iFluor® 750 hydrazide
iFluor® 647 alkyne
iFluor® 647 azide
iFluor® 790 acid
iFluor® 790 amine
iFluor® 790 hydrazide
iFluor® 488 tyramide
iFluor® 350 goat anti-mouse IgG (H+L)
iFluor® 405 goat anti-mouse IgG (H+L)
iFluor® 488 goat anti-mouse IgG (H+L)
iFluor® 514 goat anti-mouse IgG (H+L)
iFluor® 532 goat anti-mouse IgG (H+L)
iFluor® 555 goat anti-mouse IgG (H+L)
iFluor® 594 goat anti-mouse IgG (H+L)
iFluor® 633 goat anti-mouse IgG (H+L)
iFluor® 647 goat anti-mouse IgG (H+L)
iFluor® 680 goat anti-mouse IgG (H+L)
iFluor® 700 goat anti-mouse IgG (H+L)
iFluor® 750 goat anti-mouse IgG (H+L)
iFluor® 790 goat anti-mouse IgG (H+L)
iFluor® 350 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 405 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 488 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 514 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 532 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 555 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 594 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 633 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 647 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 680 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 700 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 750 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 790 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 350 goat anti-rabbit IgG (H+L)
iFluor® 405 goat anti-rabbit IgG (H+L)
iFluor® 488 goat anti-rabbit IgG (H+L)
iFluor® 514 goat anti-rabbit IgG (H+L)
iFluor® 532 goat anti-rabbit IgG (H+L)
iFluor® 555 goat anti-rabbit IgG (H+L)
iFluor® 594 goat anti-rabbit IgG (H+L)
iFluor® 633 goat anti-rabbit IgG (H+L)
iFluor® 647 goat anti-rabbit IgG (H+L)
iFluor® 680 goat anti-rabbit IgG (H+L)
iFluor® 700 goat anti-rabbit IgG (H+L)
iFluor® 750 goat anti-rabbit IgG (H+L)
iFluor® 790 goat anti-rabbit IgG (H+L)
iFluor® 350 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 405 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 488 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 514 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 532 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 555 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 594 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 633 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 647 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 680 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 700 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 750 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 790 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 350-streptavidin conjugate
iFluor® 405-streptavidin conjugate
iFluor® 488-streptavidin conjugate
iFluor® 514-streptavidin conjugate
iFluor® 532-streptavidin conjugate
iFluor® 555-streptavidin conjugate
iFluor® 594-streptavidin conjugate
iFluor® 633-streptavidin conjugate
iFluor® 647-streptavidin conjugate
iFluor® 680-streptavidin conjugate
iFluor® 700-streptavidin conjugate
iFluor® 750-streptavidin conjugate
iFluor® 750 RGD Conjugate
iFluor® 488 azide
iFluor® 405 hydrazide
iFluor® 800 acid
iFluor® 810 acid
iFluor® 820 acid
iFluor® 860 acid
iFluor® 546 goat anti-mouse IgG (H+L)
iFluor® 546 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 568 goat anti-mouse IgG (H+L)
iFluor® 568 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 546 goat anti-rabbit IgG (H+L)
iFluor® 546 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 568 goat anti-rabbit IgG (H+L)
iFluor® 568 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 555 alkyne
iFluor® 555 azide
iFluor® 546-streptavidin conjugate
iFluor® 568-streptavidin conjugate
iFluor® 488 alkyne
iFluor® 350 Styramide *Superior Replacement for Alexa Fluor 350 tyramide*
iFluor® 488 Styramide *Superior Replacement for Alexa Fluor 488 tyramide and Opal 520*
iFluor® 546 Styramide *Superior Replacement for Alexa Fluor 546 tyramide*
iFluor® 555 Styramide *Superior Replacement for Alexa Fluor 555 tyramide and Opal 570*
iFluor® 568 Styramide *Superior Replacement for Alexa Fluor 568 tyramide*
iFluor® 594 Styramide *Superior Replacement for Alexa Fluor 594 tyramide*
iFluor® 647 Styramide *Superior Replacement for Alexa Fluor 647 tyramide*
iFluor® 680 Styramide *Superior Replacement for Alexa Fluor 680 tyramide and Opal 690*
iFluor® 700 Styramide *Superior Replacement for Alexa Fluor 700 tyramide*
iFluor® 750 Styramide *Superior Replacement for Alexa Fluor 750 tyramide*
iFluor® 790 Styramide *Superior Replacement for Alexa Fluor 790 tyramide*
iFluor® 555 Tyramide
iFluor® 647 Tyramide
iFluor® 350 PSA™ Imaging Kit with Goat Anti-Rabbit IgG
iFluor® 488 PSA™ Imaging Kit with Goat Anti-Rabbit IgG
iFluor® 555 PSA™ Imaging Kit with Goat Anti-Rabbit IgG
iFluor® 594 PSA™ Imaging Kit with Goat Anti-Rabbit IgG
iFluor® 647 PSA™ Imaging Kit with Goat Anti-Rabbit IgG
iFluor® 350 PSA™ Imaging Kit with Goat Anti-Mouse IgG
iFluor® 488 PSA™ Imaging Kit with Goat Anti-Mouse IgG
iFluor® 555 PSA™ Imaging Kit with Goat Anti-Mouse IgG
iFluor® 594 PSA™ Imaging Kit with Goat Anti-Mouse IgG
iFluor® 647 PSA™ Imaging Kit with Goat Anti-Mouse IgG
iFluor® 840 acid
iFluor® 790-streptavidin conjugate
iFluor® 800-streptavidin conjugate
iFluor® 820-streptavidin conjugate
iFluor® 840-streptavidin conjugate
iFluor® 860-streptavidin conjugate
iFluor® 488-Wheat Germ Agglutinin (WGA) Conjugate
iFluor® 555-Wheat Germ Agglutinin (WGA) Conjugate
iFluor® 594-Wheat Germ Agglutinin (WGA) Conjugate
iFluor® 647-Wheat Germ Agglutinin (WGA) Conjugate
iFluor® 488-Concanavalin A Conjugate
iFluor® 555-Concanavalin A Conjugate
iFluor® 594-Concanavalin A Conjugate
iFluor® 647-Concanavalin A Conjugate
iFluor® 350 Tyramide
iFluor® 546 Tyramide
iFluor® 568 Tyramide
iFluor® 594 Tyramide
iFluor® 488 TCO
iFluor® 555 TCO
iFluor® 594 TCO
iFluor® 647 TCO
iFluor® 488 Tetrazine
iFluor® 555 Tetrazine
iFluor® 594 Tetrazine
iFluor® 647 Tetrazine
iFluor® 440-dUTP *1 mM in TE Buffer (pH 7.5)*
iFluor®488-dUTP *1 mM in TE Buffer (pH 7.5)*
iFluor® 450 Styramide *Superior Replacement for Opal Polaris 480*
iFluor® 633 tyramide
iFluor® 514 Styramide *Superior Replacement for Opal 540*
iFluor® 532 Styramide
iFluor® 633 Styramide *Superior Replacement for Opal 650*
iFluor® 440 Styramide
iFluor® 460 Styramide
iFluor® 610 Styramide
iFluor® 660 Styramide
iFluor® 405 Styramide
iFluor®488-PEG12-dUTP *1 mM in TE Buffer (pH 7.5)*
iFluor®555-PEG12-dUTP *1 mM in TE Buffer (pH 7.5)*
iFluor®647-PEG12-dUTP *1 mM in TE Buffer (pH 7.5)*
iFluor® 800 goat anti-mouse IgG (H+L)
iFluor® 800 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 810 goat anti-mouse IgG (H+L)
iFluor® 810 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 820 goat anti-mouse IgG (H+L)
iFluor® 820 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 840 goat anti-mouse IgG (H+L)
iFluor® 840 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 860 goat anti-mouse IgG (H+L)
iFluor® 860 goat anti-mouse IgG (H+L) *Cross Adsorbed*
iFluor® 800 goat anti-rabbit IgG (H+L)
iFluor® 800 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 810 goat anti-rabbit IgG (H+L)
iFluor® 810 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 820 goat anti-rabbit IgG (H+L)
iFluor® 820 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 840 goat anti-rabbit IgG (H+L)
iFluor® 840 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 860 goat anti-rabbit IgG (H+L)
iFluor® 860 goat anti-rabbit IgG (H+L) *Cross Adsorbed*
iFluor® 430 Tyramide *Superior Replacement for Opal 480*
iFluor® 450 Tyramide *Superior Replacement for Opal 480*
iFluor® 350 succinimidyl ester
iFluor® 405 succinimidyl ester
iFluor® 488 succinimidyl ester
iFluor® 514 succinimidyl ester
iFluor® 532 succinimidyl ester
iFluor® 555 succinimidyl ester
iFluor® 594 succinimidyl ester
iFluor® 633 succinimidyl ester
iFluor® 647 succinimidyl ester
iFluor® 660 succinimidyl ester
iFluor® 680 succinimidyl ester
iFluor® 700 succinimidyl ester
iFluor® 750 succinimidyl ester
iFluor® 610 succinimidyl ester
iFluor® 710 succinimidyl ester
iFluor® 790 succinimidyl ester
iFluor® 800 succinimidyl ester
iFluor® 810 succinimidyl ester
iFluor® 820 succinimidyl ester
iFluor® 860 succinimidyl ester
iFluor® 546 succinimidyl ester
iFluor® 568 succinimidyl ester
iFluor® 430 succinimidyl ester
iFluor® 450 succinimidyl ester
iFluor® 840 succinimidyl ester
iFluor® 560 succinimidyl ester
iFluor® 670 succinimidyl ester
iFluor® 460 succinimidyl ester
iFluor® 440 succinimidyl ester
iFluor® 665 succinimidyl ester
iFluor® 690 succinimidyl ester
iFluor® Ultra 594 succinimidyl ester
iFluor® Ultra 647 succinimidyl ester
iFluor® Ultra 750 succinimidyl ester
iFluor® 720 succinimidyl ester
iFluor® 740 succinimidyl ester
iFluor® 597 succinimidyl ester
iFluor® 770 succinimidyl ester
iFluor® 780 succinimidyl ester
iFluor® 570 succinimidyl ester
iFluor® 830 acid
iFluor® 830 succinimidyl ester
iFluor® 405 azide
iFluor® 675 succinimidyl ester
iFluor® 620 succinimidyl ester
iFluor® 560-dUTP *1 mM in TE Buffer (pH 7.5)*
iFluor® 750-Concanavalin A Conjugate
iFluor® 605 succinimidyl ester
iFluor® 625 succinimidyl ester
iFluor® 510 succinimidyl ester
iFluor® 350-Wheat Germ Agglutinin (WGA) Conjugate
iFluor® 532-Wheat Germ Agglutinin (WGA) Conjugate
iFluor® 680-Wheat Germ Agglutinin (WGA) Conjugate
iFluor® 700-Wheat Germ Agglutinin (WGA) Conjugate
iFluor® 750-Wheat Germ Agglutinin (WGA) Conjugate
iFluor® 790-Wheat Germ Agglutinin (WGA) Conjugate
iFluor® 570 Styramide *Superior Replacement for Alexa Fluor 568 tyramide*
iFluor® 670 Styramide *Replacement for Opal 690*
iFluor® 445 succinimidyl ester
iFluor® 500 succinimidyl ester
iFluor® 680 Tyramide *Superior Replacement for Opal 690*
iFluor® 790 Azide
iFluor® 790 Alkyne
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OverviewpdfSDSpdfProtocol


Molecular weight
777.82
iFluor® 540 maleimide selectively reacts with thiol group of a biomolecule. It is widely used to label the reduced antibodies and other thiol-containing biomolecules such as peptides and thiol-modified oligos. iFluor®540 is a fluorophore from the iFluor family, which is known for its bright red fluorescence and compatibility with various fluorescence techniques and instruments. When excited with light in the green to yellow range (around 530 to 545 nm), iFluor 540 emits red fluorescence with an emission peak typically around 560 to 570 nanometers. iFluor 540 can be conjugated to a variety of biomolecules, including antibodies, proteins, nucleic acids, and small molecules, enabling their visualization and tracking in cells and tissues. It is commonly used in fluorescence microscopy, immunohistochemistry, flow cytometry, and other fluorescence-based assays.

Calculators


Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of iFluor® 540 maleimide to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

0.1 mg0.5 mg1 mg5 mg10 mg
1 mM128.564 µL642.822 µL1.286 mL6.428 mL12.856 mL
5 mM25.713 µL128.564 µL257.129 µL1.286 mL2.571 mL
10 mM12.856 µL64.282 µL128.564 µL642.822 µL1.286 mL

Molarity calculator

Enter any two values (mass, volume, concentration) to calculate the third.

Mass (Calculate)Molecular weightVolume (Calculate)Concentration (Calculate)Moles
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Product Family


NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)Quantum yieldCorrection Factor (260 nm)Correction Factor (280 nm)
iFluor® 350 maleimide3454502000010.9510.830.23
iFluor® 488 maleimide4915167500010.910.210.11
iFluor® 555 maleimide55757010000010.6410.230.14
iFluor® 647 maleimide65667025000010.2510.030.03
iFluor® 680 maleimide68470122000010.2310.0970.094
iFluor® 700 maleimide69071322000010.2310.090.04
iFluor® 750 maleimide75777927500010.1210.0440.039
iFluor® 790 maleimide78781225000010.1310.10.09
iFluor® 800 maleimide80182025000010.1110.030.08
iFluor® 810 maleimide81182225000010.0510.090.15
iFluor® 820 maleimide82285025000010.110.16
iFluor® 860 maleimide85387825000010.10.14
iFluor® 532 maleimide5375609000010.6810.260.16
iFluor® 594 maleimide58760320000010.5310.050.04
iFluor® 405 maleimide4034273700010.9110.480.77
iFluor® 430 maleimide4334984000010.7810.680.3
iFluor® 568 maleimide56858710000010.5710.340.15
iFluor® 633 maleimide64065425000010.2910.0620.044
iFluor® 450 maleimide4515024000010.8210.450.27
iFluor® 460 maleimide468493800001~0.810.980.46
iFluor® 665 maleimide667692110,00010.2210.120.09
iFluor® 546 maleimide54155710000010.6710.250.15
iFluor® 840 maleimide8368792000001-0.20.09
iFluor® 770 maleimide77779725000010.160.090.08
iFluor® 780 maleimide78480825000010.1610.130.12
iFluor® 830 maleimide830867----
iFluor® 514 maleimide5115277500010.8310.2650.116
iFluor® 660 maleimide66367825000010.2610.070.08
iFluor® 670 maleimide67168220000010.5510.030.033
iFluor® 720 maleimide71674024000010.1410.150.13
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References


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A molecular rack and pinion actuates a cell-surface adhesin and enables bacterial gliding motility.
Authors: Shrivastava, Abhishek and Berg, Howard C
Journal: Science advances (2020): eaay6616
Protein Environment and DNA Orientation Affect Protein-Induced Cy3 Fluorescence Enhancement.
Authors: Nguyen, Binh and Ciuba, Monika A and Kozlov, Alexander G and Levitus, Marcia and Lohman, Timothy M
Journal: Biophysical journal (2019): 66-73
Electrical readout of protein microarrays on regular glass slides.
Authors: Bonilla, Diana and Mallén, Maria and de la Rica, Roberto and Fernández-Sánchez, César and Baldi, Antonio
Journal: Analytical chemistry (2011): 1726-31
Toward a solid-phase nucleic acid hybridization assay within microfluidic channels using immobilized quantum dots as donors in fluorescence resonance energy transfer.
Authors: Chen, Lu and Algar, W Russ and Tavares, Anthony J and Krull, Ulrich J
Journal: Analytical and bioanalytical chemistry (2011): 133-41
Thiazole orange and Cy3: improvement of fluorescent DNA probes with use of short range electron transfer.
Authors: Menacher, Florian and Rubner, Moritz and Berndl, Sina and Wagenknecht, Hans-Achim
Journal: The Journal of organic chemistry (2008): 4263-6
Probing orientations of single fluorescent labels on a peptide reversibly binding to the human delta-opioid receptor.
Authors: Tokimoto, Takahira and Bethea, Tomika R C and Zhou, Min and Ghosh, Indraneel and Wirth, Mary J
Journal: Applied spectroscopy (2007): 130-7
Laser scanning and electron microscopic evidence for rapid and specific in vivo labelling of cholinergic neurons in the rat basal forebrain with fluorochromated antibodies.
Authors: Kacza, J and Grosche, J and Seeger, J and Brauer, K and Brückner, G and Härtig, W
Journal: Brain research (2000): 232-8
Stimulated release of fluorescently labeled IgE fragments that efficiently accumulate in secretory granules after endocytosis in RBL-2H3 mast cells.
Authors: Xu, K and Williams, R M and Holowka, D and Baird, B
Journal: Journal of cell science (1998): 2385-96