Atto 680 NHS ester

BioReagent, suitable for fluorescence, ≥90.0% (coupling to amines)

MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.

Quality Level

product line



≥90.0% (coupling to amines)


λex 680 nm; λem 695 nm in 0.1 M phosphate pH 7.0


suitable for fluorescence

storage temp.




InChI key


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Molar absorption 120,000 1/M cm, abs: 675 nm, em: 705 nm, QY=0.3, Tfl 1.7 ns (unpublished data); excitation energy acceptor in an acceptor/donor zeolite system.

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.

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Energy transfer from dye-zeolite L antenna crystals to bulk silicon.
Stefan Huber et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 5(2), 239-242 (2004-03-25)
Philip Tinnefeld et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 6(2), 217-222 (2005-03-09)
Light-harvesting complexes, one of nature's supreme examples of nanoscale engineering, have inspired researchers to construct molecular optical devices, such as photonic wires, which are optimised for efficient transfer of excited-state energy over large distances. The control parameters for the design...
Mike Heilemann et al.
Journal of the American Chemical Society, 126(21), 6514-6515 (2004-05-27)
We demonstrate the synthesis and spectroscopic characterization of an unidirectional photonic wire based on four highly efficient fluorescence energy-transfer steps (FRET) between five spectrally different chromophores covalently attached to double-stranded DNA. The DNA-based modular conception enables the introduction of various...
Slawomir Gwiazda et al.
Biochimie, 94(7), 1457-1463 (2012-04-03)
The RNA-world-theory is one possible explanation of how life on earth has evolved. In this context it is of high interest to search for molecular systems, capable of self-organization into structures with increasing complexity. We have engineered a simple catalytic...
Irene Drude et al.
Biochemical and biophysical research communications, 363(1), 24-29 (2007-09-11)
Over the past two decades, the structure and mechanism of catalytic RNA have been extensively studied; now ribozymes are understood well enough to turn them into useful tools. After we have demonstrated the twin ribozyme mediated insertion of additional nucleotides...

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