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iFluor® 488 amine

Fluorescent dye amines 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 amines 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).
Ordering information
Price ()
Catalog Number1072
Unit Size
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Additional ordering information
Telephone1-408-733-1055
Fax1-408-733-1304
Emailsales@aatbio.com
InternationalSee distributors
ShippingStandard overnight for United States, inquire for international
Physical properties
Molecular weight805.61
SolventDMSO
Spectral properties
Correction Factor (260 nm)0.21
Correction Factor (280 nm)0.11
Extinction coefficient (cm -1 M -1)750001
Excitation (nm)491
Emission (nm)516
Quantum yield0.91
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
UNSPSC12171501

OverviewpdfSDSpdfProtocol


Molecular weight
805.61
Correction Factor (260 nm)
0.21
Correction Factor (280 nm)
0.11
Extinction coefficient (cm -1 M -1)
750001
Excitation (nm)
491
Emission (nm)
516
Quantum yield
0.91
Although FITC is still the most popular fluorescent labeling dye for preparing green fluorescent bioconjugates, there are certain limitations with FITC, such as severe photobleaching for microscope imaging and pH-sensitive fluorescence. Protein conjugates prepared with iFluor® 488 dyes are far superior compared to conjugates of fluorescein derivatives such as FITC. iFluor® 488 conjugates are significantly brighter than fluorescein conjugates and are much more photostable. Additionally, the fluorescence of iFluor® 488 is not affected by pH (4-10). This pH insensitivity is a major improvement over fluorescein, which emits its maximum fluorescence only at pH above 9. iFluor® 488 amine is stable and used for modifying carbonyl groups (e.g., aldehyde and carboxy groups).

Calculators


Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of iFluor® 488 amine 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 mM124.13 µL620.648 µL1.241 mL6.206 mL12.413 mL
5 mM24.826 µL124.13 µL248.259 µL1.241 mL2.483 mL
10 mM12.413 µL62.065 µL124.13 µL620.648 µL1.241 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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Spectrum


Open in Advanced Spectrum Viewer
spectrum

Spectral properties

Correction Factor (260 nm)0.21
Correction Factor (280 nm)0.11
Extinction coefficient (cm -1 M -1)750001
Excitation (nm)491
Emission (nm)516
Quantum yield0.91

Citations


View all 5 citations: Citation Explorer
CD95/Fas protects triple negative breast cancer from anti-tumor activity of NK cells
Authors: Qadir, Abdul S and Gu{\'e}gan, Jean Philippe and Ginestier, Christophe and Chaibi, Assia and Bessede, Alban and Charafe-Jauffret, Emmanuelle and Macario, Manon and Lavou{\'e}, Vincent and de la Motte Rouge, Thibault and Law, Calvin and others,
Journal: Iscience (2021): 103348
A versatile adeno-associated viral vector cross-linking platform capable of tuning cellular tropisms and simultaneously inducing solid-phase gene delivery
Authors: Yoo, Seungju and Kang, Byunguk and Oh, Seokmin and Kim, Yunha and Jang, Jae-Hyung
Journal: ACS Applied Bio Materials (2020): 4847--4857
Deep Sequencing Analysis of the Eha-Regulated Transcriptome of Edwardsiella tarda Following Acidification
Authors: Gao, D and Liu, N and Li, Y and Zhang, Y and Liu, G and others, undefined
Journal: Metabolomics (Los Angel) (2017): 2153--0769
Suramin inhibits cullin-RING E3 ubiquitin ligases
Authors: Wu, Kenneth and Chong, Robert A and Yu, Qing and Bai, Jin and Spratt, Donald E and Ching, Kevin and Lee, Chan and Miao, Haibin and Tappin, Inger and Hurwitz, Jerard and others, undefined
Journal: Proceedings of the National Academy of Sciences (2016): E2011--E2018
Glycosaminoglycan mimicry by COAM reduces melanoma growth through chemokine induction and function
Authors: Piccard, Helene and Berghmans, Nele and Korpos, Eva and Dillen, Chris and Aelst, Ilse Van and Li, S and ra , undefined and Martens, Erik and Liekens, S and ra , undefined and Noppen, Sam and Damme, Jo Van and others, undefined
Journal: International Journal of Cancer (2012): E425--E436

References


View all 49 references: Citation Explorer
Sequential ordering among multicolor fluorophores for protein labeling facility via aggregation-elimination based beta-lactam probes
Authors: Sadhu KK, Mizukami S, Watanabe S, Kikuchi K.
Journal: Mol Biosyst (2011): 1766
Visualizing dengue virus through Alexa Fluor labeling
Authors: Zhang S, Tan HC, Ooi EE.
Journal: J Vis Exp. (2011)
Fluorescent "Turn-on" system utilizing a quencher-conjugated peptide for specific protein labeling of living cells
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Journal: Biochem Biophys Res Commun (2011): 211
Neuroanatomical basis of clinical joint application of "Jinggu" (BL 64, a source-acupoint) and "Dazhong" (KI 4, a Luo-acupoint) in the rat: a double-labeling study of cholera toxin subunit B conjugated with Alexa Fluor 488 and 594
Authors: Cui JJ, Zhu XL, Ji CF, Jing XH, Bai WZ.
Journal: Zhen Ci Yan Jiu (2011): 262
Simultaneous detection of virulence factors from a colony in diarrheagenic Escherichia coli by a multiplex PCR assay with Alexa Fluor-labeled primers
Authors: Kuwayama M, Shigemoto N, Oohara S, Tanizawa Y, Yamada H, Takeda Y, Matsuo T, Fukuda S.
Journal: J Microbiol Methods (2011): 119
Alexa Fluor 546-ArIB[V11L;V16A] is a potent ligand for selectively labeling alpha 7 nicotinic acetylcholine receptors
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Journal: J Neurochem (2010): 994
Asymmetric trimethine 3H-indocyanine dyes: efficient synthesis and protein labeling
Authors: Song F, Wang L, Qiao X, Wang B, Sun S, Fan J, Zhang L, Peng X.
Journal: Org Biomol Chem (2010): 4249
Neuroanatomical characteristics of acupoint "Chengshan" (BL 57) in the rat: a cholera toxin subunit B conjugated with Alexa Fluor 488 method study
Authors: Zhu XL, Bai WZ, Wu FD, Jiang J, Jing XH.
Journal: Zhen Ci Yan Jiu (2010): 433
Photoactivatable and photoconvertible fluorescent probes for protein labeling
Authors: Maurel D, Banala S, Laroche T, Johnsson K.
Journal: ACS Chem Biol (2010): 507
Novel Alexa Fluor-488 labeled antagonist of the A(2A) adenosine receptor: Application to a fluorescence polarization-based receptor binding assay
Authors: Kecskes M, Kumar TS, Yoo L, Gao ZG, Jacobson KA.
Journal: Biochem Pharmacol (2010): 506