ATTO 647N

ATTO 647N
ATTO 647N
ATTO 647N
ATTO 647N
Preview: ATTO 647N
Preview: ATTO 647N
Preview: ATTO 647N
Preview: ATTO 647N
ATTO 647N
Mobile Preview: ATTO 647N
Mobile Preview: ATTO 647N
Mobile Preview: ATTO 647N
Mobile Preview: ATTO 647N

Optical Properties

λabs

646

nm

εmax

1.5×105

M-1 cm-1

λfl

664

nm

ηfl

65

%

τfl

3.5

ns

CF260 = ε260max

0.04

 

CF280 = ε280max

0.03

 

ATTO 647N belongs to a new generation of fluorescent labels for the red spectral region. Characteristic features of the label are strong absorption, high fluorescence quantum yield, high thermal and photo-stability, and exceptionally high stability towards atmospheric ozone. Thus ATTO 647N is highly suitable for single-molecule detection applications and high-resolution microscopy such as SIM, STED etc. Additionally the dye highly qualifies to be applied in flow cytometry (FACS), fluorescence in-situ hybridization (FISH) and many more.
In common with most ATTO-labels, absorption and fluorescence are independent of pH, at least in the range of pH 2 to 11, used in typical applications. The dye is moderately hydrophilic. ATTO 647N is a cationic dye. After coupling to a substrate the dye carries a net electrical charge of +1. As supplied ATTO 647N consists of a mixture of two isomers with practically identical absorption and fluorescence properties. The fluorescence is excited most efficiently in the range 625 - 660 nm. A suitable excitation source is the 647 nm line of the Krypton-Ion laser or a diode-laser emitting at 650 nm.

 

Product No.:
AD 647N
from 166,00 EUR

excl. 19% tax excl. Shipping costs

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