Water soluble Azide-Fluor 545 has a long PEG4 spacer that separates the dye tetramethylrhodamine (commonly known as TMR or TAMRA) from the azido group. The dye is a superior alternative to the popular TMR dye. The water-soluble PEG4 spacer should minimize the interaction between the dye and the biomolecule to be labeled.

With excitation maximum at 544 nm, the azide – conjugate is an excellent match to the intense 546 nm spectral line of the mercury-arc lamps used in most fluorescence microscopes. This probe is also efficiently excited by the 543 nm spectral line of the Ar – Kr mixed gas laser commonly used in many confocal laser-scanning microscopes.

The fluorescence of tetramethylrhodamine conjugates as well as many other rhodamine based probes is pH insensitive between 4 and 9, and exhibits excellent photostability.

Catalog Number Product DataSheet Size AVAILABILITY Price Qty
Azide-TAMRA, 25 mg
25mg In stock
Regular Price:$679.00
On Sale:

Product Type: Small Molecule
Name: Azide-TAMRA
Molecular Weight: 631.7
Extinction Coefficient: 92000 cm-1M-1
Variant MPN: AZ109
Format: Dark red solid
Purity: >90% HPLC
Solubility: DMSO, DMF, MeOH, Water
Spectral Information: Abs/Em=546/565nm
Storage: Upon receipt store at -20C
Shipped: Ambient temperature

  1. Smyth T, Petrova K, Payton NM, Persaud I, Redzic JS, Graner MW, Smith-Jones P, Anchordoquy TJ. Surface functionalization of exosomes using click chemistry. Bioconjug Chem. 2014 Oct 15;25(10):1777-84. View Article

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