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ATTO 647

 
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ATTO 647
ATTO 647

Optical Properties

λabs

647

nm

εmax

1.2×105

l / mol cm

λfl

667

nm

ηfl

20

%

τfl

2.4

ns

CF260 = ε260max

0.08

 

CF280 = ε280max

0.04

 

ATTO 647 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 photostability, and good water solubility. ATTO 647 is a zwitterionic dye with a net electrical charge of zero. The dye is stable at physiological pH-values and in buffers up to pH 8. However, it slowly degrades at higher pH. The dye is very hydrophilic. For details of coupling see our recommended labeling procedure (PDF). The fluorescence is excited most efficiently in the range 615 - 660 nm. A suitable excitation source for ATTO 647 is, next to the He:Ne laser (633nm), the 647 nm line of the Krypton-Ion laser or a diode-laser emitting at 650 nm.

Literature: ATTO 647

Product Sheets

- ATTO 647 product information

- NHS-ester

- Streptavidin


Material Safety Data Sheets

- ATTO 647 carboxy MSDS

- ATTO 647 NHS-ester MSDS

- ATTO 647 maleimide MSDS

- ATTO 647 streptavidin MSDS

- ATTO 647 biotin MSDS

- ATTO 647 phalloidin MSDS


Absorption and Emission Specktrum (ASCII)

- ATTO 647 absorption (.txt)

- ATTO 647 emission (.txt)

Modification:
carboxy (1 mg) - AD 647-21
154,00 EUR
carboxy (5 mg) - AD 647-25
616,00 EUR
NHS-ester (1 mg) - AD 647-31
188,00 EUR
NHS-ester (5 mg) - AD 647-35
752,00 EUR
maleimide (1 mg) - AD 647-41
240,00 EUR
maleimide (5 mg) - AD 647-45
960,00 EUR
streptavidin (1 mg) - AD 647-61
200,00 EUR
streptavidin (5 mg) - AD 647-65
800,00 EUR
biotin (1 mg) - AD 647-71
196,00 EUR
biotin (5 mg) - AD 647-75
784,00 EUR
phalloidin (10 nmol) - AD 647-81
240,00 EUR
phalloidin (20 nmol) - AD 647-82
420,00 EUR
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