Sulfo-Cyanine5.5 NHS ester

Cat. # Quantity Price Lead time
17320 1 mg $110.00 in stock
27320 5 mg $290.00 in stock
47320 25 mg $690.00 in stock
57320 50 mg $1190.00 in stock
67320 100 mg $1850.00 in stock

Sulfo-Cyanine5.5 NHS ester is an amine reactive activated ester of sulfonated far red Cyanine5.5 fluorophore, an analog of Cy5.5®. This is a reagent of choice for the labeling of antibodies, sensitive proteins, and others which require reactions in purely aqueous environment, or without any significant additions of organic co-solvents.

The dye is well suitable for non-invasive in vivo NIR imaging, and for the applications requiring low fluorescent background.

Absorption and emission spectra of sulfo-Cyanine5.5 fluorophore

Absorption and emission spectra of sulfo-Cyanine5.5 fluorophore

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Sulfo-Cyanine7.5 NHS ester

A water soluble near infrared emitting dye for in vivo imaging applications. Sulfo-Cyanine7.5 is an analog of indocyanine green (ICG) possessing higher emission quantum yield, and containing a linker arm.

General properties

Appearance: dark blue solid
Mass spec M+ increment: 884.15
Molecular weight: 1114.37
Molecular formula: C44H42N3K3O16S4
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: 675
ε, L⋅mol−1⋅cm−1: 195000
Emission maximum, nm: 694
CF260: 0.09
CF280: 0.11

Product citations

  1. Kwon, Y.-D.; Oh, J.-M.; La, M.T.; Chung, H.-J.; Lee, S.J.; Chun, S.; Lee, S.-H.; Jeong, B.-H.; Kim, H.-K. Synthesis and Evaluation of Multifunctional Fluorescent Inhibitors with Synergistic Interaction of PSMA and Hypoxia for Prostate Cancer. Bioconjugate Chemistry, 2019, 30(1), 90–100. doi: 10.1021/acs.bioconjchem.8b00767
  2. Liu, Y.; Wang, Z.; Li, X.; Ma, X.; Wang, S.; Kang, F.; Yang, W.; Ma, W.; Wang, J. Near-infrared Fluorescent Peptides with High Tumor Selectivity: Novel Probes for Image-Guided Surgical Resection of Orthotopic Glioma. Molecular Pharmaceutics, 2019, 16(1), 108–117. doi: 10.1021/acs.molpharmaceut.8b00888
  3. Jasinski, D.L.; Yin, H.; Li, Z.; Guo, P. The Hydrophobic Effect from Conjugated Chemicals or Drugs on in Vivo Biodistribution of RNA Nanoparticles. Human Gene Therapy, 2018, 29(1), 77–86. doi: 10.1089/hum.2017.054
  4. Park, S.; Shevlin, E.; Vedvyas, Y.; Zaman, M.; Park, S.; Hsu, Y.-M.S.; Min, I.M.; Jin, M.M. Micromolar affinity CAR T cells to ICAM-1 achieves rapid tumor elimination while avoiding systemic toxicity. Scientific Reports, 2017, 7, 14366. doi: 10.1038/s41598-017-14749-3
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