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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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: 235000
Emission maximum, nm: 694
CF260: 0.09
CF280: 0.11

Product citations

  1. Wang, Y.; Li, K.; Han, S.; Tian, Y.-H.; Hu, P.-C.; Xu, X.-L.; He, Y.-Q.; Pan, W.-T.; Gao, Y.; Zhang, Z.; Zhang, J.-W.; Wei, L. Chlorotoxin targets ERα/VASP signaling pathway to combat breast cancer. Cancer Medicine, 2019, 8(4), 1679–1693. doi: 10.1002/cam4.2019
  2. Ha, S.-W.; Hwang, K.; Jin, J.; Cho, A.-S.; Kim, T.Y.; Hwang, S.I.; Lee, H.J.; Kim, C.-Y. Ultrasound-sensitizing nanoparticle complex for overcoming the blood-brain barrier: an effective drug delivery system. International Journal of Nanomedicine, 2019, 14, 3743–3752. doi: 10.2147/ijn.s193258
  3. Liu, R.; Li, Z.; Marvin, J.S.; Kleinfeld, D. Direct wavefront sensing enables functional imaging of infragranular axons and spines. Nature Methods, 2019, 16, 615–618. doi: 10.1038/s41592-019-0434-7
  4. Guenter, R.E.; Aweda, T.; Carmona Matos, D.M.; Whitt, J.; Chang, A.W.; Cheng, E.Y.; Liu, X.M.; Chen, H.; Lapi, S.E.; Jaskula-Sztul, R. Pulmonary Carcinoid Surface Receptor Modulation Using Histone Deacetylase Inhibitors. Cancers, 2019, 11(6), 767. doi: 10.3390/cancers11060767
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