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Dear listers,
A user of our facility came time ago with samples labelled for RNA FISH
with Quasar570. Company website (
https://www.biosearchtech.com/quasar-570-carboxylic-acid) states: "Quasar
570 is an indocarbocyanine which fluoresces in the yellow-orange region of
the visible spectrum; it excites at 548 nm and emits at 570 nm. This
compound is a direct replacement for Cy™3" Company states this is a
replacement for Cy3."
So it belongs to the cyanine family of fluorochromes, but I am not a
chemist and I cannot see what is different between Quasar570 and Cy3 beyond
the commercial name and/or if it is similar to other orange/red
fluorochromes as Alexa555 or Alexa568, so I would thank a lot if somebody
could point me out this.
Thank you very much in advance,
Xavi.
___________________________________
*Xavier Sanjuan*
Advanced Light Microscopy Unit
Parc de Recerca Biomèdica de Barcelona
Doctor Aiguader, 88
08003 Barcelona - Spain
Tel: + 34 93 316 0195 (ext 1195 dins el PRBB)
Fax: + 34 93 316 09 01
E-mail:
[hidden email]
Web:
http://www.crg.eu/en/core/programmes-groups/advanced-light-microscopy-unit
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