TAMRA carboxylic acid, 5-isomer
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67190
100 mg
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87190
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97190
5 g
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Tetramethylrhodamine (TAMRA) is a xanthene dye with orange emission. The dye is a FRET acceptor for FAM and is sometimes used as a quencher of FAM. Like other xanthenes, TAMRA exists as two isomers (5- and 6-) with similar spectral properties. This compound is a pure 5-isomer of TAMRA.
TAMRA carboxylic acid is a non-reactive form of TAMRA dye that can be used as a reference standard in experiments involving TAMRA dye conjugates. Besides, the carboxylic group can react with hydrazines, hydroxylamines, and amines using carbodiimides such as EDAC.
Absorption and emission spectra of 5-TAMRA
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General properties
Appearance:
green powder
Molecular weight:
430.46
CAS number:
91809-66-4
Molecular formula:
C25 H22 N2 O5
Quality control:
NMR 1 H and HPLC-MS (95+%)
Storage conditions:
24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Desiccate. Avoid prolonged exposure to light.
MSDS:
Download
Product specifications
Spectral properties
Excitation/absorption maximum, nm:
541
ε, L⋅mol−1 ⋅cm−1 :
84000
Emission maximum, nm:
567
Fluorescence quantum yield:
0.1
CF260 :
0.32
CF280 :
0.19
This Product is offered and sold for research purposes only. It has not been tested for safety and efficacy in food, drug, medical device, cosmetic, commercial or any other use. Supply does not express or imply authorization to use for any other purpose, including, without limitation, in vitro diagnostic purposes, in the manufacture of food or pharmaceutical products, in medical devices or in cosmetic products.
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