76245 Sigma

Atto 655 NHS ester

BioReagent, suitable for fluorescence



Related Categories Atto Labels, Biochemicals and Reagents, Detection, Fluorescent Labels, Fluorescent Probes, Labels, Particles and Stains,
product line   BioReagent
fluorescence   λex 655 nm; λem 680 nm in 0.1 M phosphate pH 7.0
suitability   suitable for coupling to amines
  suitable for fluorescence
storage temp.   −20°C



Atto fluorescent labels are designed for high sensitivity applications, including single molecule detection. Atto labels have rigid structures that do not show any cis-trans-isomerization. Thus these labels display exceptional intensity with minimal spectral shift on conjugation.

General description

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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.

Price and Availability

Safety & Documentation

Safety Information

NONH for all modes of transport
WGK Germany 
Protocols & Articles


Fluorescent Labeling of Peptides

Labeling peptides with fluorescent dyes or other labels provides powerful tools for the investigation of biological relevant interactions like receptor-ligand-binding,1-3 protein structures,4-6 and e...
ChemFiles Volume 5 Article 12
Keywords: Alzheimer Disease, Biochemistry, Electrophoresis, Enzyme activity, Immobilization, Ligands, Methods, Microscopy, Peptide synthesis, Separation, Solid phase peptide synthesis, Solvents, Spectroscopy, Tools

Superior Fluorescent Imaging Using Atto Dyes

Activated fluorescent dyes are routinely used to tag proteins, nucleic acids, and other biomolecules for use in life science applications including fluorescence microscopy, flow cytometry, fluorescen...
BioFiles 2011, 6.3, 5.
Keywords: Absorption, Applications, Bacterial conjugations, Confocal microscopy, Degradations, Enzyme Assays, Extinction coefficient, Flow cytometry, In Situ hybridization, Infrared spectroscopy, Isomerizations, Microarray Analysis, Microscopy, Molecular probes, Nucleic acid hybridization, Protocols, Semiconductor, Separation, Spectroscopy, Support

Peer-Reviewed Papers


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06693 Timestrip Plus -20 °C

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