ATTO 647N Labeled Peptides

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ATTO 647N Peptide Labeling

ATTO 647N is a far-red fluorescent dye known for strong photostability and low background. It is used in advanced microscopy, multicolor fluorescence experiments, and far-red peptide labeling applications.

Key Properties

Excitation / Emission644 / 669 nm
ColorFar-red
Laser Compatibility633 nm / 640 nm
Typical UseAdvanced microscopy, multicolor imaging
NotesPhotostable far-red alternative to Cy5-type dyes
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ATTO 647N Spectrum

ATTO 647N excitation emission spectrum

Why Use ATTO 647N?

  • Far-red signal suitable for low-background detection
  • Useful in advanced microscopy workflows
  • Compatible with common far-red laser systems
  • Useful alternative to Cy5 and related far-red dyes

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