Cyanine 5 carboxylic acid (A270165)

Cyanine 5 carboxylic acid

Non-activated carboxylic acid, an analog of Cy5® free carboxylic acid. Contains Cyanine 5 fluorophore. This dye has limited water solubility, but can be dissolved in mixtures of water with organic phase (DMF, DMSO, alcohols) to obtain useful concentrations of the material in solution. A water-soluble version is available. This molecule can be considered non-reactive dye for the use in control samples, and for instrument calibration. For coupling with amines and protein labeling, consider using Cyanine 5 NHS ester, or water-soluble sulfo-Cyanine 5 NHS ester.

646 nm

250000 M^-1cm^-1

662 nm

0.2

1032678-07-1, 195867-59-5, 766503-38-2

0.04

95% (by ¹H NMR and HPLC-MS).

C₃₂H₃₉ClN₂O₂

519.12 kDa

Dark blue powder.

Soluble in organic solvents (DMF, DMSO, dichloromethane). Very poorly soluble in water (0.25 mM, 130 mg/L).

Shipped at room temperature. Upon delivery, store in the dark at -20°C. Avoid prolonged exposure to light. Desiccate.

This product is for research use only. It is not intended for diagnostic or therapeutic use.