Sulfo-Cyanine7.5 NHS ester

Cat. # Quantity Price Lead time
16320 1 mg $110.00 in stock
26320 5 mg $290.00 in stock
46320 25 mg $690.00 in stock
56320 50 mg $1190.00 in stock
66320 100 mg $1850.00 in stock

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.

Absorption and emission spectra of sulfo-Cyanine7.5

Absorption and emission spectra of sulfo-Cyanine7.5

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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.
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

Product citations

  1. Park, B.G.; Kim, Y.J.; Min, J.H.; Cheong, T.-C.; Nam, S.H.; Cho, N.-H.; Kim, Y.K.; Lee, K.B. Assessment of Cellular Uptake Efficiency According to Multiple Inhibitors of Fe3O4-Au Core-Shell Nanoparticles: Possibility to Control Specific Endocytosis in Colorectal Cancer Cells. Nanoscale Research Letters, 2020, 15, 165. doi: 10.1186/s11671-020-03395-w
  2. Ju, Y.; Guo, H.; Yarber, F.; Edman, M.C.; Peddi, S.; Janga, S.R.; MacKay, J.A.; Hamm-Alvarez, S.F. Molecular Targeting of Immunosuppressants Using a Bi-functional Elastin-Like Polypeptide. Bioconjugate Chemistry, 2019, 30(9), 2358–2372. doi: 10.1021/acs.bioconjchem.9b00462
  3. Ruiz, A.; Bravo, D.; Duarte, A.; Adler, R.S.; Raya, J.G. Accuracy of Ultrasound-Guided versus Landmark-Guided Intra-articular Injection for Rat Knee Joints. Ultrasound in Medicine and Biology, 2019, 45(10), 2787–2796. doi: 10.1016/j.ultrasmedbio.2019.06.403
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