Atto 565 (Figure 1) can be used as an alternative to Alexa Fluor 568 or Alexa Fluor 546.

Figure 1. Structure of 5'-Atto 565 (R = sequence).
metabion offers Atto 565 as a 5'-modification in its DNA portfolio:
Suggestions
Atto 565 (Figure 1) can be used as an alternative to Alexa Fluor 568 or Alexa Fluor 546.
Figure 1. Structure of 5'-Atto 565 (R = sequence).
metabion offers Atto 565 as a 5'-modification in its DNA portfolio: