Sulfo-Cyanine5 tetrazine

Cat. # Quantity Price Lead time
133E0 1 mg $110.00 in stock
233E0 5 mg $290.00 in stock
333E0 10 mg $460.00 in stock
433E0 25 mg $690.00 in stock
533E0 50 mg $1270.00 in stock
633E0 100 mg $1990.00 in stock

TCO (tetrazine – trans-cyclooctene) ligation is one of the fastest reactions used for bioconjugation. It is an inverse electron demand [4+2] cycloaddition that takes place between tetrazine and trans-cyclooctene or other strained olefin.

Sulfo-Cyanine5 tetrazine is a fluorophore derivative bearing a tetrazine group for the TCO-ligation based labeling.

This reagent possesses good aqueous solubility and stability in biological environments.

Absorption and emission spectra of Sulfo-Cyanine5

Absorption and emission spectra of Sulfo-Cyanine5

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General properties

Appearance: dark blue solid
Molecular weight: 864.09
Molecular formula: C42H46KN7O7S2
Solubility: good in water, 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 maximum, nm: 646
ε, L⋅mol−1⋅cm−1: 271000
Emission maximum, nm: 662
Fluorescence quantum yield: 0.28
CF260: 0.04
CF280: 0.04
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