sulfo-Cyanine3.5 NHS ester

Cat. # Quantity Price Lead time
12320 1 mg $125 5 days
22320 5 mg $325 in stock
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

LumiTracker Mito JC-1

The cationic carbocyanine dye that is widely used as an indicator of mitochondrial membrane potential to study apoptosis and monitor the health of mitochondria.

AF 430 maleimide

AF 430 is a green-yellow emitting fluorescent dye of the coumarin series. This maleimide derivative allows the labeling of thiolated biomolecules.

sulfo-Cyanine5 amine

Sulfonated Cyanine5 amine derivative for the conjugation with electrophiles and enzymatic transamination labeling.

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.