We enable nucleic acid labeling bioconjugation
Generic selectors
Exact matches only
Search in title
Search in content
Post Type Selectors
show blocks helper

Product Application for...

Product Emission color

Product Enatiomeric structure

Product Kits for..

Product Label Position

Product Linker type

Product Metabolit

Product Modification Type

Product Nucleoside

Product Nucleosites

Product Protection Type

Product Sort by

Product Sugar core

Eterneon-Red 645 Azide

Special Fluorescent Short Stoke Shift Dye to label DNA/RNA

  • Size
  • Catalog No.
  • Price
  • 5.0 mg
  • BCFA-201-5

  • € 450,00
  • 1.0 mg
  • BCFA-201-1

  • € 120,00
  • Eterneon-Red 645 Azide is a red fluorescent dye wich spectral properties just as Cy5. Due to its chemical structure though it is water-soluble and this very well suited for click conjugation with terminal-alkynylated biomoledules in aqueous media.


    • What are the Eterneon dyes?

      Our EterneonTM dyes are a special class of ultra-stable fluorescent dyes. Our long stokes-shift ones even have well separated peaks of absorbance and emission, so it is very convenient to characterize your sample with very sharp and strongly fluorescent signals. These special dyes are oligothiophene based, uncharged and not pH sensitive.

    • Molecular Formula


    • Shelf Life

      12 months unopened after receipt

    • Storage Conditions

      -20 °C, dark

    • Molecular Weight

      663.85 g/mol

    • Purity

      ≥ 95% (HPLC)

    • Physical State

      blue to metallic solid

    • CAS Number


    • Additional name

      Disulfonate pentamethine cyanine azide

    • Excitation (max)

      643 nm

    • Emission (max)

      662 nm

    • Ɛ (max)

      250,000 cm-1M-1

    • Solubility

      H2O, DMSO, DMF, MeOH, MeCN

    • Preparation/Handling

      For a 10 mM solution add 150 μL to 1 mg.
      For a 10 mM solution add 753 μL to 5 mg.