iFluor® 840 acid

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Additional ordering information

Telephone	1-800-990-8053
Fax	1-800-609-2943
Email	sales@aatbio.com
Quotation	Request
International	See distributors
Shipping	Standard overnight for United States, inquire for international

Physical properties

Molecular weight	1426.01
Solvent	DMSO

Spectral properties

Correction Factor (260 nm)	0.2
Correction Factor (280 nm)	0.09
Extinction coefficient (cm ^-1 M ^-1)	200000¹
Excitation (nm)	836
Emission (nm)	879

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	12171501

Alternative formats

iFluor® 840 succinimidyl ester

iFluor® 840 maleimide

Overview SDS Protocol

Molecular weight

1426.01

Correction Factor (260 nm)

0.2

Correction Factor (280 nm)

0.09

Extinction coefficient (cm ^-1 M ^-1)

200000¹

Excitation (nm)

836

Emission (nm)

879

In vivo fluorescence imaging uses a sensitive camera to detect the fluorescence emission from fluorophores in whole-body living small animals. To overcome the photon attenuation in living tissue, fluorophores with long emission at the infrared (IR) region are generally preferred. Recent advances in imaging strategies and reporter techniques for in vivo fluorescence imaging include novel approaches to improve the specificity and affinity of the probes and to modulate and amplify the signal at target sites for enhanced sensitivity. Further emerging developments aim to achieve high-resolution, multimodality, and lifetime-based in vivo fluorescence imaging. Our iFluor® 830 is designed to label proteins and other biomolecules with infrared fluorescence. Conjugates prepared with iFluor® 830 have excitation and emission in the IR range. iFluor® 840 dye emission is well separated from commonly used far-red fluorophores such as Cy5, Cy7, or allophycocyanin (APC), facilitating multicolor analysis. This fluorophore is also useful for small animal in vivo imaging applications or other imaging applications requiring IR detection.

Calculators

Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of iFluor® 840 acid 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	70.126 µL	350.629 µL	701.257 µL	3.506 mL	7.013 mL
5 mM	14.025 µL	70.126 µL	140.251 µL	701.257 µL	1.403 mL
10 mM	7.013 µL	35.063 µL	70.126 µL	350.629 µL	701.257 µL

Molarity calculator

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

Mass (Calculate)		Molecular weight		Volume (Calculate)		Concentration (Calculate)		Moles
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Spectrum

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Spectral properties

Correction Factor (260 nm)	0.2
Correction Factor (280 nm)	0.09
Extinction coefficient (cm ^-1 M ^-1)	200000¹
Excitation (nm)	836
Emission (nm)	879

Product Family

Name	Excitation (nm)	Emission (nm)	Extinction coefficient (cm ^-1 M ^-1)	Quantum yield	Correction Factor (260 nm)	Correction Factor (280 nm)
iFluor® 790 acid	787	812	250000¹	0.13¹	0.1	0.09
iFluor® 800 acid	801	820	250000¹	0.11¹	0.03	0.08
iFluor® 810 acid	811	822	250000¹	0.05¹	0.09	0.15
iFluor® 820 acid	822	850	250000¹		0.11	0.16
iFluor® 860 acid	853	878	250000¹		0.1	0.14
iFluor® 830 acid	830	867	-	-	-	-

Images

Figure 1. With EDAC or other equivalent activating coupling agents, iFluor 840 acid can react readily with the primary amines (R-NH₂) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The resulting dye conjugates are quite stable.

Citations

View all 8 citations: Citation Explorer

Block Face Scanning Electron Microscopy of Fluorescently Labeled Axons Without Using Near Infra-Red Branding
Authors: Maclachlan, C., Sahlender, D. A., Hayashi, S., Molnar, Z., Knott, G.
Journal: Front Neuroanat (2018): 88

Bioactive magnetic near Infra-Red fluorescent core-shell iron oxide/human serum albumin nanoparticles for controlled release of growth factors for augmentation of human mesenchymal stem cell growth and differentiation
Authors: Levy, I., Sher, I., Corem-Salkmon, E., Ziv-Polat, O., Meir, A., Treves, A. J., Nagler, A., Kalter-Leibovici, O., Margel, S., Rotenstreich, Y.
Journal: J Nanobiotechnology (2015): 34

Novel near infra-red fluorescent pH sensors based on 1-aminoperylene bisimides covalently grafted onto poly(acryloylmorpholine)
Authors: Aigner, D., Borisov, S. M., Petritsch, P., Klimant, I.
Journal: Chem Commun (Camb) (2013): 2139-41

In vitro and ex vivo evaluation of smart infra-red fluorescent caspase-3 probes for molecular imaging of cardiovascular apoptosis
Authors: Debunne, M., Portal, C., Delest, B., Brakenhielm, E., Lallem and , F., Henry, J. P., Ligeret, H., Noack, P., Massonneau, M., Romieu, A., Renard, P. Y., Thuillez, C., Richard, V.
Journal: Int J Mol Imaging (2011): 413290

Simple sensitive and simultaneous high-performance liquid chromatography method of glucoconjugated and non-glucoconjugated porphyrins and chlorins using near infra-red fluorescence detection
Authors: Canada-Canada, F., Bautista-Sanchez, A., Taverna, M., Prognon, P., Maillard, P., Grierson, D. S., Kasselouri, A.
Journal: J Chromatogr B Analyt Technol Biomed Life Sci (2005): 166-72

An infra-red light-transmitting aperture controller for use in single-cell fluorescence photometry
Authors: Mahaut-Smith, M. P.
Journal: J Microsc (1998): 60-6

Photosynthetic induction in C4 leaves : An investigation using infra-red gas analysis and chlorophyll a fluorescence
Authors: Furbank, R. T., Walker, D. A.
Journal: Planta (1985): 75-83

Fluorescent infra-red angiography of the fundus oculi using indocyanine green dye
Authors: Chopdar, A., Turk, A. M., Hill, D. W.
Journal: Trans Ophthalmol Soc U K (1978): 142-6

References

View all 19 references: Citation Explorer

Nanovesicle delivery to the liver via retinol binding protein and platelet-derived growth factor receptors: how targeting ligands affect biodistribution
Authors: Hsu, Ching-Yun and Chen, Chun-Han and Aljuffali, Ibrahim A and Dai, You-Shan and Fang, Jia-You
Journal: Nanomedicine (2017)

A target cell-specific activatable fluorescence probe for in vivo molecular imaging of cancer based on a self-quenched avidin-rhodamine conjugate
Authors: Hama Y, Urano Y, Koyama Y, Kamiya M, Bernardo M, Paik RS, Shin IS, Paik CH, Choyke PL, Kobayashi H.
Journal: Cancer Res (2007): 2791

Fluorescence imaging in vivo: recent advances
Authors: Rao J, Dragulescu-Andrasi A, Yao H.
Journal: Curr Opin Biotechnol (2007): 17

Ex vivo fluorescence imaging of normal and malignant urothelial cells to enhance early diagnosis
Authors: Steenkeste K, Lecart S, Deniset A, Pernot P, Eschwege P, Ferlicot S, Leveque-Fort S, Bri and et R, Fontaine-Aupart MP.
Journal: Photochem Photobiol (2007): 1157

In vivo monitoring the fate of Cy5.5-Tat labeled T lymphocytes by quantitative near-infrared fluorescence imaging during acute brain inflammation in a rat model of experimental autoimmune encephalomyelitis
Authors: Berger C, Gremlich HU, Schmidt P, Cannet C, Kneuer R, Hiest and P, Rausch M, Rudin M.
Journal: J Immunol Methods (2007): 65

A protocol for imaging alternative splicing regulation in vivo using fluorescence reporters in transgenic mice
Authors: Bonano VI, Oltean S, Garcia-Blanco MA.
Journal: Nat Protoc (2007): 2166

In vivo imaging of the bronchial wall microstructure using fibered confocal fluorescence microscopy
Authors: Thiberville L, Moreno-Swirc S, Vercauteren T, Peltier E, Cave C, Bourg Heckly G.
Journal: Am J Respir Crit Care Med (2007): 22

In Vivo Fluorescence Microscopic Imaging for Dynamic Quantitative Assessment of Intestinal Mucosa Permeability in Mice
Authors: Szabo A, Vollmar B, Boros M, Menger MD.
Journal: J Surg Res. (2007)

In vivo spectral fluorescence imaging of submillimeter peritoneal cancer implants using a lectin-targeted optical agent
Authors: Hama Y, Urano Y, Koyama Y, Kamiya M, Bernardo M, Paik RS, Krishna MC, Choyke PL, Kobayashi H.
Journal: Neoplasia (2006): 607

In vivo imaging of green fluorescent protein-expressing cells in transgenic animals using fibred confocal fluorescence microscopy
Authors: Al-Gubory KH, Houdebine LM.
Journal: Eur J Cell Biol (2006): 837