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93711

Sigma-Aldrich

Atto 655

BioReagent, suitable for fluorescence, ≥85% (HPLC)

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About This Item

Numéro MDL:
MFCD03456136
Code UNSPSC :
12352116
ID de substance PubChem :
57653573
Nomenclature NACRES :
NA.32

Gamme de produits

BioReagent

Niveau de qualité

100

Essai

≥85% (HPLC)

Forme

powder

Fabricant/nom de marque

ATTO-TEC GmbH

Transmittance

254 nm
655 nm

Fluorescence

λex 655 nm; λem 680 nm in 0.1 M phosphate pH 7.0

λ

in ethanol (with 0.1% trifluoroacetic acid)

Absorption UV

λ: 652-658 nm Amax

Adéquation

suitable for fluorescence

Température de stockage

−20°C

InChI

1S/C27H33N3O6S/c1-4-29-9-5-7-17-11-20-24(13-22(17)29)36-25-14-23-19(12-21(25)28-20)18(16-37(33,34)35)15-27(2,3)30(23)10-6-8-26(31)32/h11-14,18H,4-10,15-16H2,1-3H3,(H-,31,32,33,34,35)

Clé InChI

FOYVTVSSAMSORJ-UHFFFAOYSA-N

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Application

Atto labels are designed for highest sensitivity applications. A unique combination of advantages makes them highly favorable tools for all kinds of labeling applications. Some of their properties make them specifically interesting for single molecule detection. Atto labels are based on rigid structures and do not show any cis-trans-isomerization, which lowers the brightness of signals and leads to environment dependency, e.g., spectral shifts by conjugation.
Atto 655 shows a molar extinction of 110,000 and QY of 30% in water (50% in ethanol). Decay time is 1.9 ns.

Autres remarques

New red absorbing fluorescent dye with best signal-to-noise ratio and long fluorescence life-time. Useful as a biophysical probe for binding interactions.

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Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)

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Certificats d'analyse (COA)

Lot/Batch Number
BCCK5545
BCCK1805
BCCK0554
BCCJ6652
BCCH8482

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Bioconjugate chemistry, 14(1), 195-204 (2003-01-16)
The spectroscopic characteristics (absorption, emission, and fluorescence lifetime) of 13 commercially available red-absorbing fluorescent dyes were studied under a variety of conditions. The dyes included in this study are Alexa647, ATTO655, ATTO680, Bodipy630/650, Cy5, Cy5.5, DiD, DY-630, DY-635, DY-640, DY-650
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Chemistry (Weinheim an der Bergstrasse, Germany), 17(50), 14170-14177 (2011-11-16)
The molecular interactions of the glycopeptide antibiotic vancomycin (Van) with bacterial cell wall analogues N,N'-diacetyl-L-Lys-D-Ala-D-Ala (Ac(2) KdAdA) and N,N'-diacetyl-L-Lys-D-Ala-D-Lac (Ac(2) KdAdL) were investigated in neat water, phosphate buffer and HEPES buffer by using fluorescence correlation spectroscopy (FCS) and molecular dynamics
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The journal of physical chemistry. B, 115(17), 5001-5007 (2011-04-12)
Atto655 has been widely used as an excellent probing dye through photoinduced electron transfer (PET) for biochemical processes in oligonucleotides or polypeptides. However, its photophysical properties in the presence of the quenchers guanosine and tryptophan have not been carefully studied.
Eilon Sherman et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 12(3), 696-703 (2011-01-29)
Intramolecular dynamics in the denatured state of a protein are of importance for protein folding. Native-like contact formation within the ensemble of denatured conformations of a protein may guide its transformation towards the native conformation. The efficiency of folding is
Achim Friedrich et al.
FEBS letters, 581(8), 1644-1648 (2007-04-03)
This article presents a new, highly sensitive method for the identification of single nucleotide polymorphisms (SNPs) in homogeneous solutions using fluorescently labeled hairpin-structured oligonucleotides (smart probes) and fluorescence single-molecule spectroscopy. While the hairpin probe is closed, fluorescence intensity is quenched
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