Cyanine5 carboxylic acid 100mg Cyanine5羧基 100mg 现货

名称  Cyanine5 carboxylic acid 100mg    货号 JP1029100  中文名称Cyanine5羧基 品牌 上海金畔    规格 100mg   库存  大量现货

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 orgaic phase (DMF, DMSO, alcohols) to obtain useful concentrations of the material in solution. Water-soluble version is available.

This molecule can be considered non-eactive 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.

General properties

Appearance: dark blue powder
Molecular weight: 519.12
CAS number: 1032678-07-1 (chloride), 195867-59-5 (inner salt), 766503-38-2 (without anion)
Molecular formula: C32H39ClN2O2
IUPAC name: 3H-​Indolium, 2-​[5-​[1-​(5-​carboxypentyl)​-​1,​3-​dihydro-​3,​3-​dimethyl-​2H-​indol-​2-​ylidene]​-​1,​3-​pentadien-​1-​yl]​-​1,​3,​3-​trimethyl-​, chloride
Solubility: soluble in organic solvents (DMF, DMSO, dichloromethane), very poorly soluble in water (0.25 mM, 130 mg/L)
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. Desiccate.

Spectral properties

Excitation/absorption maximum, nm: 646
ε, L⋅mol−1⋅cm−1: 250000
Emission maximum, nm: 662
Fluorescence quantum yield: 0.2
CF260: 0.03
CF280: 0.04