CY5-L-Tyrosine 

Cy5-L-Tyrosine/L-Tyrosine,CY5 labed/Cyanine5-L-Tyrosine/ L-Tyrosine,Cyanine5 labed is a fluorescent amino acid conjugate, where the near-infrared dye Cy5 is covalently attached to L-tyrosine. This conjugate combines the biological relevance of tyrosine with the strong NIR fluorescence of Cy5 (λ_ex ~650 nm, λ_em ~670 nm), making it highly suitable for optical imaging and biochemical studies.
Applications:
Fluorescent labeling of peptides, proteins, or biomolecules.
Cellular uptake and distribution studies with reduced background interference.
Biochemical assays involving tyrosine-related signaling or enzyme activity.
Molecular imaging in vitro and in vivo.

msds of CY5-L-Tyrosine