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iFluor® 790 hydrazide

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 near-infrared (NIR) region are generally preferred, including widely used small indocarbocyanine dyes. 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® 790 is designed to label proteins and other biomolecules with near-infrared fluorescence. Conjugates prepared with iFluor® 790 have excitation and emission spectra similar to that of indocyanine green (ICG) and the IRDye® 800, with 787/812 nm excitation/emission maxima. iFluor® 790 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 NIR detections, such as the two-color western applications with the LI-COR® Odyssey® infrared imaging system.

Example protocol

AT A GLANCE

Important notes
It is important to store at <-15 °C and should be stored in cool, dark place.

It can be used within 12 months from the date of receipt.

PREPARATION OF WORKING SOLUTION

iFluor™ 790 hydrazide working solution:
Add water to make iFluor™ 790 hydrazide working solution of desired concentration.

Calculators

Common stock solution preparation

Table 1. Volume of Water needed to reconstitute specific mass of iFluor® 790 hydrazide 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 mM86.244 µL431.22 µL862.441 µL4.312 mL8.624 mL
5 mM17.249 µL86.244 µL172.488 µL862.441 µL1.725 mL
10 mM8.624 µL43.122 µL86.244 µL431.22 µL862.441 µL

Molarity calculator

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

Mass (Calculate)Molecular weightVolume (Calculate)Concentration (Calculate)Moles
/=x=

Spectrum

Product family

NameExcitation (nm)Emission (nm)Extinction coefficient (cm -1 M -1)Quantum yieldCorrection Factor (260 nm)Correction Factor (280 nm)
iFluor® 350 hydrazide3454502000010.9510.830.23
iFluor® 488 hydrazide4915167500010.910.210.11
iFluor® 555 hydrazide55757010000010.6410.230.14
iFluor® 647 hydrazide65667025000010.2510.030.03
iFluor® 680 hydrazide68470122000010.2310.0970.094
iFluor® 700 hydrazide69071322000010.2310.090.04
iFluor® 750 hydrazide75777927500010.1210.0440.039
iFluor® 405 hydrazide4034273700010.9110.480.77
iFluor® 790 Styramide *Superior Replacement for Alexa Fluor 790 tyramide*78781225000010.1310.10.09

Citations

View all 1 citations: 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)

References

View all 18 references: Citation Explorer
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
Page updated on December 6, 2024

Ordering information

Price
Unit size
Catalog Number1364
Quantity
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Additional ordering information

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Physical properties

Molecular weight

1159.50

Solvent

Water

Spectral properties

Correction Factor (260 nm)

0.1

Correction Factor (280 nm)

0.09

Extinction coefficient (cm -1 M -1)

2500001

Excitation (nm)

787

Emission (nm)

812

Quantum yield

0.131

Storage, safety and handling

H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22

Storage

Freeze (< -15 °C); Minimize light exposure
UNSPSC12171501

Platform

Fluorescence microplate reader

Excitation783 nm
Emission814 nm
Cutoff790 nm
Recommended plateSolid black
Fluorescent dye hydrazine derivatives are the most popular tool for conjugating dyes to a target compound with a carbonyl group (e.g., aldehyde, carboxylic acid or activated carboxy group such as NHS ester). Fluorescent dye hydrazine derivatives are also useful for tracing neurons.
Fluorescent dye hydrazine derivatives are the most popular tool for conjugating dyes to a target compound with a carbonyl group (e.g., aldehyde, carboxylic acid or activated carboxy group such as NHS ester). Fluorescent dye hydrazine derivatives are also useful for tracing neurons.
Fluorescent dye hydrazine derivatives are the most popular tool for conjugating dyes to a target compound with a carbonyl group (e.g., aldehyde, carboxylic acid or activated carboxy group such as NHS ester). Fluorescent dye hydrazine derivatives are also useful for tracing neurons.