Lumiprobe 磺酸基CY7.5NHS酯 Sulfo-Cyanine7.5 NHS ester

Lumiprobe 磺酸基CY7.5NHS酯 Sulfo-Cyanine7.5 NHS ester


Sulfo-Cyanine7.5 is a near infrared water soluble and hydrophilic dye for the NIR imaging applications. The structure and spectra of the dye resemble indocyanine green (ICG) that has been approved for use in humans for years. However, unlike ICG, sulfo-Cyanine7.5 contains a trimethylene bridge that increases its quantum yield compared to ICG, and also has a linker arm for its attachment to proteins, peptides, and other molecules. This derivative is an NHS ester for the modification of amine groups.

Structure of sulfo-Cyanine7.5 NHS ester

Cat. # Quantity Lead time
16320 1 mg in stock
26320 5 mg in stock
46320 25 mg in stock
56320 50 mg in stock
66320 100 mg in stock

General properties

Appearance: dark green solid
Mass spec M+ increment: 950.2
Molecular weight: 1180.47
Molecular formula: C49H48N3K3O16S4
Solubility: good in water, DMF, DMSO
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 12 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light. Desiccate.

Spectral properties

Excitation maximum, nm: 778
ε, L⋅mol−1⋅cm−1: 222000
Emission maximum, nm: 797
CF260: 0.09
CF280: 0.09