Cyanine Dyes (Cy Dyes)

Cyanine Dyes are a class of fluorescent dye used for labeling amine groups on antibodies, peptides or oligonucleotides and are suitable for use in a range of applications, including microscopy, flow cytometry and fluorescence resonance energy transfer (FRET). Cyanine dyes are characterized by a polymethine bridge linking the nitrogen atoms of two heterocyclic rings and as a result of their structure have high extinction coefficients. The sulfonated cyanine dyes exhibit good water solubility.

Literature (1)
Cat. No. Product Name / Activity
5435 Cyanine 3, SE
Orange fluorescent dye for labeling of amines; supplied as NHS ester
5436 Cyanine 5, SE
Red fluorescent dye for the labeling of amines; supplied as NHS ester
5437 Cyanine 7, SE
Near-infrared fluorescent dye for labeling of amines; supplied as NHS ester

Literature for Cyanine Dyes (Cy Dyes)

Tocris offers the following scientific literature for Cyanine Dyes (Cy Dyes) to showcase our products. We invite you to request* your copy today!

*Please note that Tocris will only send literature to established scientific business / institute addresses.

New Product Guide

New Product Guide [Spring/Summer 2019]

Our new product guide highlights over 215 new products added to the Tocris Bioscience range during the first half of 2019.

  • 7-TM Receptors
  • Enzymes
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  • Nuclear Receptors
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  • Chemogenetics
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  • Signal Transduction
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