TAMRA alkyne, 5-isomer

Cat. # Quantity Price Lead time
A71B0 1 mg $110.00 in stock
B71B0 5 mg $210.00 in stock
C71B0 10 mg $310.00 in stock
D71B0 25 mg $410.00 in stock
E71B0 50 mg $695.00 in stock

TAMRA alkyne for Click chemistry, pure 5-isomer. TAMRA (TMR, tetramethylrhodamine) is a xanthene dye. It forms a FRET pair with fluorescein.

This alkyne is suitable for Copper-catalyzed Click chemistry (CuAAC).

Absorption and emission spectra of 5-TAMRA

Absorption and emission spectra of 5-TAMRA

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General properties

Appearance: violet solid
Mass spec M+ increment: 467.2
Molecular weight: 467.51
CAS number: 945928-17-6
Molecular formula: C28H25N3O4
Solubility: good in DMF, DMSO, low in water
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light.
MSDS: Download
Product specifications

Spectral properties

Excitation 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

Product citations

  1. Rojas-Sánchez, L.; Sokolova, V.; Riebe, S.; Voskuhl, J.; Epple, M. Covalent Surface Functionalization of Calcium Phosphate Nanoparticles with Fluorescent Dyes by Copper-Catalysed and by Strain-Promoted Azide-Alkyne Click Chemistry. ChemNanoMat, 2019, 5(4), 436–446. doi: 10.1002/cnma.201800509
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