sulfo-Cyanine3.5 NHS ester

Cat. # Quantity Price Lead time
12320 1 mg $110.00 in stock
22320 5 mg $290.00 in stock
42320 25 mg $690.00 in stock
52320 50 mg $1270.00 in stock
62320 100 mg $1990.00 in stock

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

Cyanine5 NHS ester

Amine-reactive Cyanine5 activated ester for the labeling of proteins, peptides, and other molecules.

ROX NHS ester, 6- isomer

Pure isomer 6-ROX NHS ester for amine labeling.

Cyanine5.5 NHS ester

Cyanine5.5 NHS is far-red / near-infrared amine-reactive dye.
Add this product to your cart and
get free express delivery

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 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
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.