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-Cyanine5.5 maleimide

Sulfo-Cyanine5.5 is a water-soluble far red emitting dye. This is a thiol reactive maleimide derivative of sulfo-Cyanine5.5. It is recommended for the labeling of sensitive proteins.

Sulfo-Cyanine3 NHS ester

Water soluble sulfo-Cyanine3 SE activated ester for amino-biomolecule labeling.

Cyanine7 NHS ester

Amine reactive NHS ester of near infrared dye Cyanine7.

General properties

Appearance: dark blue solid
Mass spec M+ increment: 884.15
Molecular weight: 1114.37
CAS number: N/A
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. Peplau, E.; De Rose, F.; Reder, S.; Mittelhaeuser, M.; Scafetta, G.; Schwaiger, M.; Weber, W.A.; Bartolazzi, A.; Skerra, A.; D'Alessandria, C. Development of a chimeric Fab directed against human galectin-3 and validation as an immune-PET tracer for the sensitive in vivo imaging of thyroid cancer. Thyroid, in press. doi: 10.1089/thy.2019.0670
  2. Wang, J.; Li, Y.; Li, L.; Yang, J.; Kopeček, J. Exploration and Evaluation of Therapeutic Efficacy of Drug-Free Macromolecular Therapeutics in Collagen-Induced Rheumatoid Arthritis Mouse Model. Macromolecular Bioscience, 2020, 20(5), e1900445. doi: 10.1002/mabi.201900445
  3. Chen, Q.; Gao, M.; Li, Z.; Xiao, Y.; Bai, X.; Boakye-Yiadom, K.O.; Xu, X.; Zhang, X.-Q. Biodegradable nanoparticles decorated with different carbohydrates for efficient macrophage-targeted gene therapy. Journal of Controlled Release, 2020, 323, 179–190. doi: 10.1016/j.jconrel.2020.03.044
  4. Taghian, T.; Metelev, V.G.; Zhang, S.; Bogdanov, A.A. Imaging NF-κB activity in a murine model of early stage diabetes. FASEB Journal, 2020, 34(1), 1198–1210. doi: 10.1096/fj.201801147r
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