sulfo-Cyanine5.5 NHS ester

Cat. # Quantity Price Lead time
17320 1 mg $125 in stock
27320 5 mg $325 in stock
47320 25 mg $850 in stock
57320 50 mg $1490 in stock
67320 100 mg $1990 in stock
Found better price? Let us know and we will propose the way forward!

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 a 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 applications requiring low fluorescent background.

Absorption and emission spectra of sulfo-Cyanine5.5

Absorption and emission spectra of sulfo-Cyanine5.5

Customers also purchased with this product

Cyanine5.5 tetrazine

A compound containing Cyanine5.5 fluorophore, a far red emitting dye, and tetrazine fragment for the conjugation with trans-cyclooctenes / cyclopropenes via TCO ligation.

sulfo-Cyanine7 maleimide

Water-soluble near-infrared dye maleimide for the labeling of proteins and peptides.

BDP TMR NHS ester

Amine reactive NHS ester of BDP TMR, bright borondipyrromethene dye for TAMRA channel especially suitable for fluorescence polarization assays.

General properties

Appearance: dark blue solid
Mass spec M+ increment: 884.15
Molecular weight: 1114.37
CAS number: 2419286-92-1
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/absorption maximum, nm: 675
ε, L⋅mol−1⋅cm−1: 211000
Emission maximum, nm: 694
Fluorescence quantum yield: 0.21
CF260: 0.09
CF280: 0.11

Product citations

  1. Yao, P.; Liu, R.; Broginni, T.; Thunemann, M.; Kleinfeld, D. Guide to the Construction and Use of an Adaptive Optics Two-Photon Microscope with Direct Wavefront Sensing. bioRxiv, 2023, preprint. doi: 10.1101/2023.01.24.525307
  2. Zhou, L.; He, F.; Xiang, X.; Dong, C.; Xiang, T.; Li, X.; Li, H.; Bu, L.; Wang, Y.; Ma, X. Radioactive and Fluorescent Dual Modality Cysteine Cathepsin B Activity-Based Probe for Cancer Theranostics. Mol. Pharmaceutics, 2023, 20(7), 3539–3548. doi: 10.1021/acs.molpharmaceut.3c00148
  3. Shevchuk, A. I.; Svinko, V. O.; Smirnov, A. N.; Solovyeva, E. V. SERS Study of Cyanine Dyes: Optimization of Metal Core and Molecular Label Choice for Plasmonic Nanotags. Dyes and Pigments, 2023, 216, 111329. doi: 10.1016/j.dyepig.2023.111329.
  4. Svinko, V. O.; Smirnov, A. N.; Shevchuk, A. I.; Demenshin, A. I.; Smirnov, A. A.; Solovyeva, E. V. Comparative Study of Fluorescence Core-Shell Nanotags with Different Morphology of Gold Core. Colloids and Surfaces B: Biointerfaces, 2023, 226, 113306. doi: 10.1016/j.colsurfb.2023.113306
Show more (32)
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.