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14918

Sigma-Aldrich

Atto 655 amine

suitable for fluorescence

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About This Item

UNSPSC Code:
12352200
NACRES:
NA.32

form

solid

manufacturer/tradename

ATTO-TEC GmbH

fluorescence

λex 663; λem 684 nm in 0.1 M phosphate pH 7.0

suitability

suitable for fluorescence

storage temp.

−20°C

General description

Atto 655 belongs to a new generation of fluorescent labels. The dye is designed for application in the area of life science, e.g. labeling of DNA, RNA or proteins. Characteristic features of the label are strong absorption, good fluorescence quantum yield, excellent thermal and photo-stability, outstanding ozone resistance, very good water solubility, and very little triplet formation. Atto 655 is a zwitterionic dye with a net electrical charge of zero. The fluorescence is efficiently quenched by electron donors like guanine, tryptophan, etc.
The amine derivative may be used for reactions with activated carboxy-groups like NHS-esters, TFP-esters etc.

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Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Suitability

for coupling to activated carboxy groups

Legal Information

This product is for Research use only. In case of intended commercialization, please contact the IP-holder (ATTO-TEC GmbH, Germany) for licensing.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

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Ruixue Zhu et al.
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
Søren Preus et al.
Chembiochem : a European journal of chemical biology, 13(14), 1990-2001 (2012-09-01)
Förster resonance energy transfer (FRET) is a powerful tool for monitoring molecular distances and interactions at the nanoscale level. The strong dependence of transfer efficiency on probe separation makes FRET perfectly suited for "on/off" experiments. To use FRET to obtain
Julie M G Rogers et al.
Langmuir : the ACS journal of surfaces and colloids, 27(7), 3815-3821 (2011-03-16)
The structure and function of the influenza A M2 proton channel have been the subject of intensive investigations in recent years because of their critical role in the life cycle of the influenza virus. Using a truncated version of the

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