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).

Ordering information

Price
Catalog Number
Unit Size
Quantity

Add to cart

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	805.61
Solvent	DMSO

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 yield	0.9¹

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® 488 succinimidyl ester

iFluor® 488 maleimide

iFluor® 488 azide

iFluor® 488 alkyne

iFluor® 488 hydrazide

Overview SDS Protocol

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 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 mg	0.5 mg	1 mg	5 mg	10 mg
1 mM	124.13 µL	620.648 µL	1.241 mL	6.206 mL	12.413 mL
5 mM	24.826 µL	124.13 µL	248.259 µL	1.241 mL	2.483 mL
10 mM	12.413 µL	62.065 µL	124.13 µL	620.648 µL	1.241 mL

Molarity calculator

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

Mass (Calculate)		Molecular weight		Volume (Calculate)		Concentration (Calculate)		Moles
	/		=		x		=

Spectrum

Open in Advanced Spectrum Viewer

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 yield	0.9¹

Product Family

Name	Excitation (nm)	Emission (nm)	Extinction coefficient (cm ^-1 M ^-1)	Quantum yield	Correction Factor (260 nm)	Correction Factor (280 nm)
iFluor® 350 amine	345	450	20000¹	0.95¹	0.83	0.23
iFluor® 405 amine	403	427	37000¹	0.91¹	0.48	0.77
iFluor® 555 amine	557	570	100000¹	0.64¹	0.23	0.14
iFluor® 647 amine	656	670	250000¹	0.25¹	0.03	0.03
iFluor® 660 amine	663	678	250000¹	0.26¹	0.07	0.08
iFluor® 680 amine	684	701	220000¹	0.23¹	0.097	0.094
iFluor® 700 amine	690	713	220000¹	0.23¹	0.09	0.04
iFluor® 710 amine	717	739	190000¹	0.60¹	0.12	0.07
iFluor® 750 amine	757	779	275000¹	0.12¹	0.044	0.039
iFluor® 790 amine	787	812	250000¹	0.13¹	0.1	0.09
iFluor® 488 tyramide	491	516	75000¹	0.9¹	0.21	0.11
iFluor® 488 Styramide Superior Replacement for Alexa Fluor 488 tyramide and Opal 520	491	516	75000¹	0.9¹	0.21	0.11
iFluor® 488 TCO	491	516	75000¹	0.9¹	0.21	0.11
iFluor® 488 Tetrazine	491	516	75000¹	0.9¹	0.21	0.11
iFluor®488-dUTP 1 mM in Tris Buffer (pH 7.5)	491	516	75000¹	0.9¹	0.21	0.11
Show More (6)

Images

Figure 1. 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).

Citations

View all 13 citations: Citation Explorer

Kukoamine A attenuates lipopolysaccharide-induced apoptosis, extracellular matrix degradation, and inflammation in nucleus pulposus cells by activating the P13K/Akt pathway
Authors: Wang, Dan and Qu, Hao and Kang, Hui and Xu, Feng and Huang, Wei and Cai, Xianhua
Journal: Bioengineered (2022): 8772--8784

Independent phenotypic plasticity axes define distinct obesity sub-types
Authors: Yang, Chih-Hsiang and Fagnocchi, Luca and Apostle, Stefanos and Wegert, Vanessa and Casan{\'\i}-Gald{\'o}n, Salvador and Landgraf, Kathrin and Panzeri, Ilaria and Dror, Erez and Heyne, Steffen and W{\"o}rpel, Till and others,
Journal: Nature metabolism (2022): 1150--1165

ZBTB7A promotes virus-host homeostasis during human coronavirus 229E infection
Authors: Zhu, Xinyu and Trimarco, Joseph D and Williams, Courtney A and Barrera, Alejandro and Reddy, Timothy E and Heaton, Nicholas S
Journal: Cell Reports (2022): 111540

Osteoclasts directly influence castration-resistant prostate cancer cells
Authors: Huang, Junchi and Freyhult, Eva and Buckland, Robert and Josefsson, Andreas and Damber, Jan-Erik and Wel{\'e}n, Karin
Journal: Clinical \& experimental metastasis (2022): 801--814

A Novel CDK4/6 and PARP Dual Inhibitor ZC-22 Effectively Suppresses Tumor Growth and Improves the Response to Cisplatin Treatment in Breast and Ovarian Cancer
Authors: Tian, Chenchen and Wei, Yufan and Li, Jianjun and Huang, Zhi and Wang, Qiong and Lin, Yingxue and Lv, Xingping and Chen, Yanan and Fan, Yan and Sun, Peiqing and others,
Journal: International journal of molecular sciences (2022): 2892

Endogenous glutamine is rate-limiting for anti-Cd3 and anti-Cd28 induced Cd4+ T-cell proliferation and glycolytic activity under hypoxia and normoxia
Authors: Wik, Jonas A and Chowdhury, Azazul and Kolan, Shrikant and Bastani, Nasser E and Li, Gaoyang and Alam, Kazi and Grimolizzi, Franco and Sk{\aa}lhegg, Bj{\o}rn S
Journal: Biochemical Journal (2022): 1221--1235

Regulation of circADAMTS6-miR-324-5p-PIK3R3 ceRNA pathway may be a novel mechanism of IL-1$\beta$-induced osteoarthritic chondrocytes
Authors: Shen, Lanjuan and Ji, Cheng and Lin, Jian and Yang, Hongping
Journal: Journal of Bone and Mineral Metabolism (2022): 389--401

Silencing of Circ\_0135889 Restrains Proliferation and Tumorigenicity of Human Neuroblastoma Cells
Authors: Yang, Jun and Liu, Bao and Xu, Zhenli and Feng, Mei
Journal: Journal of Surgical Research (2022): 135--147

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

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
Authors: Arai S, Yoon SI, Murata A, Takabayashi M, Wu X, Lu Y, Takeoka S, Ozaki M.
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
Authors: Hone AJ, Whiteaker P, Mohn JL, Jacob MH, McIntosh JM.
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