Sulfo-Cyanine7 tetrazine

Cat. # Quantity Price Lead time
153E0 1 mg $110.00 in stock
253E0 5 mg $290.00 in stock
453E0 25 mg $690.00 in stock
553E0 50 mg $1270.00 in stock
653E0 100 mg $1990.00 in stock

Sulfo-Cyanine7 is a near infrared, water soluble fluorophore. This derivative contains methyltetrazine group for the fast, efficient, and metal free conjugation with cycloalkenes in a reaction called TCO ligation.

Sulfo-Cyanine7 absorption and emission spectra

Sulfo-Cyanine7 absorption and emission spectra

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Near infrared Cyanine7 dye derivative containing tetrazine group for TCO ligation.

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Tetrazine derivative of the fluorophore Cyanine3. Tetrazines react extremely quickly with strained alkenes (such as trans-cyclooctenes, cyclopropenes), and some strained alkynes.

Cyanine7.5 tetrazine

Cyanine7.5 is a NIR fluorescent dye with absorption and emission spectra similar to ICG (indocyanine green), but possessing a higher fluorescence quantum yield. This derivative is a tetrazine derivative for the TCO ligation reaction.

General properties

Appearance: dark green solid
Mass spec M+ increment: 863.3
Molecular weight: 930.19
Molecular formula: C47H52N7KO7S2
Solubility: good in DMF, DMSO, 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. Desiccate.
MSDS: Download
Product specifications

Spectral properties

Excitation maximum, nm: 750
ε, L⋅mol−1⋅cm−1: 240600
Emission maximum, nm: 773
CF260: 0.04
CF280: 0.04
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