Description
High-purity, non-activated rhodamine dye for red fluorescence labeling
6-Carboxytetramethylrhodamine (6-TAMRA), single isomer, is a non-activated red fluorescent dye used as a classic FRET acceptor for covalent labeling of biomolecules, including proteins and alkylamino-modified nucleic acids. Its excitation characteristics align with the 546 nm spectral line of mercury-arc lamps and the 543 nm line of the green He-Ne laser. Compared to fluorescein, TAMRA offers enhanced photostability and often appears brighter, despite a lower fluorescence quantum yield.
Performance Highlights
-
Classic FRET acceptor with robust red fluorescence
-
Readily excitable by 546 nm and 543 nm light sources
-
Intrinsically more photostable than fluorescein derivatives
Properties
-
Absorption (nm): 549
-
Emission (nm): 572
- Molecular details: Not specified
Application
- Bioconjugation
