Sulfo-Cyanine7.5 azide

Cat. # Quantity Price Lead time
A6330 1 mg $110.00 in stock
B6330 5 mg $290.00 in stock
C6330 10 mg $470.00 in stock
D6330 25 mg $690.00 in stock
E6330 50 mg $1270.00 in stock
F6330 100 mg $1990.00 in stock

Sulfo-Cyanine7.5 is a heptamethyne cyanine dye for the near infrared region of the spectrum, which is very hydrophilic, and water soluble. The fluorophore resembles ICG (indocyanine green) that has a long history of in vivo use, and is even approved for human angiography. However, compared to ICG, sulfo-Cyanine7.5 has a significantly improved fluorescence quantum yield due to the rugged polymethine chain reinforced with trimethylene bridge.

Sulfo-Cyanine7.5 is available as a number of reactive derivatives. This azide can be used for the easy labeling of various biomolecules by copper-catalyzed or copper free Click chemistry.

Absorption and emission spectra of sulfo-Cyanine7.5 fluorophore

Absorption and emission spectra of sulfo-Cyanine7.5 fluorophore

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General properties

Appearance: dark colored solid
Mass spec M+ increment: 1050.3
Molecular weight: 1165.51
Molecular formula: C48H51N6K3O13S4
Solubility: good in water, DMSO, DMF
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: 778
ε, L⋅mol−1⋅cm−1: 222000
Emission maximum, nm: 797
CF260: 0.09
CF280: 0.09
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