sulfo-Cyanine3.5 NHS ester

Cat. # Quantity Price Lead time
12320 1 mg $125 in stock
22320 5 mg $325 5 days
42320 25 mg $850 in stock
52320 50 mg $1490 in stock
62320 100 mg $1990 in stock
Found better price? Let us know and we will propose the way forward!

Cyanine3.5 is a fluorescent dye with absorption and emission intermediate between Cyanine3 and Cyanine5. Sulfonated version contains four sulfo groups which ensure high solubility and hydrophilicity of the fluorophore and labeled conjugates.

The NHS ester reactive group allows to label primary and secondary amine groups.

Absorption and emission spectra of sulfo-Cyanine3.5

Absorption and emission spectra of sulfo-Cyanine3.5

Customers also purchased with this product

FAM NHS ester, 6-isomer

Activated N-hydroxysuccinimide ester of fluorescein (FAM), pure 6-isomer.

EDC (N-ethyl-N'-(3-dimethylaminopropyl)carbodiimide), coupling grade

Water soluble carbodiimide for the coupling of carboxylic acids with amines.

BDP TR amine

BDP TR borondipyrromethene dye with a free amine group for the conjugation with electrophilic reagents and enzymatic transamination reaction. BDP TR is a bright dye for the ROX channel.

General properties

Appearance: deep purple powder
Molecular weight: 1088.33
CAS number: 2231670-91-8 (without cation)
Molecular formula: C42H40N3K3O16S4
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: 576
ε, L⋅mol−1⋅cm−1: 139000
Emission maximum, nm: 603
Fluorescence quantum yield: 0.11
CF260: 0.16
CF280: 0.17

Product citations

  1. McGuire, K.; He, S.; Gracie, J.; Bryson, C.; Zheng, D.; Clark, A.W.; Koehnke, J.; France, D.J.; Nau, W.M.; Lee, T.-C.; Peveler, W.J. Supramolecular Click Chemistry for Surface Modification of Quantum Dots Mediated by Cucurbit[7]uril. ACS nano, 2023, 17(21), 21585-21594. doi: 10.1021/acsnano.3c06601
  2. Shramova, E.; Proshkina, G.; Shipunova, V.; Ryabova, A.; Kamyshinsky, R.; Konevega, A.; Schulga, A.; Konovalova, E.; Telegin, G.; Deyev, S. Dual Targeting of Cancer Cells with DARPin-Based Toxins for Overcoming Tumor Escape. Cancers, 2020, 12(10), 3014. doi: 10.3390/cancers12103014
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.