FAM tetrazine, 5-isomer
Cat. # | Quantity | Price | Lead time | Buy this product |
---|---|---|---|---|
141E0 | 1 mg | $110 | in stock | |
241E0 | 5 mg | $210 | in stock | |
441E0 | 25 mg | $410 | in stock | |
541E0 | 50 mg | $695 | in stock | |
641E0 | 100 mg | $1190 | in stock |
Tetrazine (methyltetrazine) derivative of fluorescein, pure 5-isomer.
Tetrazines are reactive heterodiene components for [4+2] inverse electron demand Diels-Alder reaction (ied-DA) with strained cycloalkenes (trans-cyclooctenes, cyclopropenes). This reaction is also called TCO (tetrazine-cyclooctene) ligation. The reaction is among the fastest bioconjugation reactions.
FAM absorbance and emission spectra
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Water soluble Cyanine dye tetrazine derivative for TCO ligation with trans-cyclooctenes and other strained olefines.Cyanine5 tetrazine
Cyanine5 is a universal red emitting dye with a very high extinction coefficient, and good quantum yield. This tetrazine derivative reacts very quickly with trans-cyclooctenes and cyclopropenes with the formation of stable conjugates.General properties
Appearance: | yellow solid |
Mass spec M+ increment: | 529.12 |
Molecular weight: | 559.53 |
CAS number: | 1619222-85-3 |
Molecular formula: | C31H21N5O6 |
Solubility: | good in DMF, DMSO |
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. Desiccate. |
MSDS: | Download |
Product specifications |
Spectral properties
Excitation/absorption maximum, nm: | 492 |
ε, L⋅mol−1⋅cm−1: | 74000 |
Emission maximum, nm: | 517 |
Fluorescence quantum yield: | 0.93 |
CF260: | 0.22 |
CF280: | 0.17 |
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