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News: 20^th January 2004

is expanding their product range in the area of labeling dyes.

We are extending our range of labels with 3 new fluorescent dyes and 3 quenchers. These labels can be either purchased as their N-hydroxysuccinimidyl esters (NHS-ester) or with a free carboxylic acid functionality. Further modifications are available on request.

The product range includes:

- ATTO 465: good photostability and fluorescence quantum yield.
- ATTO 488: An alternative to Alexa Fluor 488^* and FITC.
  Good photostability and fluorescence quantum yield.
- ATTO 700:  can be excited with long wavelength diode lasers.
  Good photostability and fluorescence quantum yield.

- ATTO 540Q:  fluorescence quencher.
- ATTO 580Q:  fluorescence quencher.
- ATTO 612Q:  fluorescence quencher.

^* Alexa Fluor 488 is Trademark of Molecular Probes