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

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

5-Carboxytetramethylrhodamine-PEG3-Azide (5-TAMRA-PEG3-Azide)

Fluorescent dye to label DNA/RNA via click chemistry

  • Size
  • Catalog No.
  • Price
  • 5 mg
  • BCFA-037-5

  • € 80,00
  • 10 mg
  • BCFA-037-10

  • € 125,00
  • 100 mg
  • BCFA-037-100

  • € 500,00
  • 5-Carboxytetramethylrhodamine-PEG3-Azide (5-TAMRA-PEG3-Azide) has the same properties as 5-TAMRA-azide, but has a PEG3 spacer that separates the dye core from the attachable biomolecule and thus minimizes possible interactions between both.


    Postsynthetic DNA Modification through the Copper-Catalyzed Azide–Alkyne Cycloaddition Reaction, P. M. E. Gramlich et al., 2008, Angew. Chemie Int. Ed., Vol. 47, p. 8350–8358.


    Click–Click–Click: Single to Triple Modification of DNA, P. M. E. Gramlich et al., 2008, Angew. Chemie Int. Ed., Vol. 47, p. 3442-3444.


    A chemical method for fast and sensitive detection of DNA synthesis in vivo, A. Salic et al., 2008, Proc. Natl. Acad. Sci. U. S. A., Vol. 105, p. 2415–2420.


    Chemoenzymatic Preparation of Functional Click-Labeled Messenger RNA, S. Croce et al., 2020, ChemBioChem, Vol. 21(11), p. 1641-1646.


    Synthesis and biological evaluation of anthracene-9,10 dione derivatives as CK2 inhibitors, P. López-Rojas et al., 2023, Results in Chemistry, Vol. 6, p. 100997.


    • Molecular Formula


    • Shelf Life

      12 months unopened after receipt

    • Storage Conditions

      -20 °C, dark

    • Molecular Weight

      630.69 g/mol

    • Purity

      ≥ 90% (LCMS)

    • Physical State

      pink to dark red solid

    • CAS Number


    • Additional name


    • Excitation (max)

      DMF or DMSO: 546 nm

    • Emission (max)

      DMF or DMSO: 579 nm

    • Ɛ (max)

      91,000 cm-1M-1

    • Solubility

      DMSO, DMF, MeOH, slightly soluble in water

    • Preparation/Handling

      For a 10 mM solution add 158 μL to 1 mg.