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【产品名称】
 Cyanine5 carboxylic acid
【订购货号】
 L468701
【产品CAS号码】
 无
【规格/价格】
 
【预计到货时间】
 30 天
【产品详细说明】
【本产品仅供科学研究使用】
【更新日期】 2014-2-28  

Non-activated carboxylic acid, an analog of Cy5® free carboxylic acid. Contains Cyanine5 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.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 Cyanine5 NHS ester, or water-soluble sulfo-Cyanine5 NHS ester.

Cyanine5 free carboxylic acid structure   Cyanine5 absorbance and emission spectra 

General properties

Appearance: dark blue powder
Molecular weight: 519.12
Molecular formula: C32H39ClN2O2
Solubility: soluble in organic solvents (DMF, DMSO, dichloromethane), insoluble in water
Quality control: NMR 1H (95%) and 13C, TLC
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. Desiccate.

Spectral properties

Excitation maximum, nm: 646
Extinction coefficient at excitation maximum, Lmol-1cm-1: 250000
Emission maximum, nm: 662
Fluorescence quantum yield: 0.2
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