Cyanine3.5 carboxylic acid

Cat. # Quantity Price Lead time
12090 1 mg $110 in stock
22090 5 mg $210 in stock
42090 25 mg $410 in stock
52090 50 mg $695 in stock
62090 100 mg $1190 in stock
Found better price? Let us know and we will propose the way forward!

Cyanine3.5 free unactivated monofunctional carboxylic acid. Can be used as a reference non-reactive dye or control. Cyanine3.5 is an analog of Cy3.5® fluorophore.

Cyanine3.5 absorbance and emission spectra

Cyanine3.5 absorbance and emission spectra

Customers also purchased with this product

sulfo-Cyanine5.5 amine

sulfo-Cyanine5.5 is a far-red/NIR fluorophore possessing high hydrophilicity and aqueous solubility. This is an amine derivative that is reactive toward electrophiles. It can also be used for enzymatic transamination labeling.

Cyanine3 carboxylic acid

The free carboxylic acid of Cyanine3 dye. Non-sulfonated dye, with good solubility in organic solvents, and limited aqueous solubility.

sulfo-Cyanine5 carboxylic acid

Water-soluble Cyanine5 carboxylic acid, non-activated fluorescent dye.

General properties

Appearance: dark purple powder
Molecular weight: 593.20
CAS number: 1802928-88-6 (chloride), 1144107-79-8 (inner salt), 1802978-82-0 (without anion)
Molecular formula: C38H41ClN2O2
Solubility: soluble in organic solvents (DMF, DMSO, dichloromethane), insoluble in water
Quality control: NMR 1H, HPLC-MS (95%)
Storage conditions: Storage: 24 months after receival at -20°C in the dark. Transportation: at room temperature for up to 3 weeks. Avoid prolonged exposure to light.
MSDS: Download
Product specifications

Spectral properties

Excitation/absorption maximum, nm: 591
ε, L⋅mol−1⋅cm−1: 116000
Emission maximum, nm: 604
Fluorescence quantum yield: 0.35
CF260: 0.29
CF280: 0.22

Product citations

  1. Kwok, S.J.J.; Choi, M.; Bhayana, B.; Zhang, X.; Ran, C.; Yun, S.-H. Two-photon excited photoconversion of cyanine-based dyes. Scientific Reports, 2016, 6, 23866. doi: 10.1038/srep23866
Your item has been added. View your cart or proceed to checkout
The count of items is incorrect.