Cyanine3 carboxylic acid

Free Cyanine3 carboxylic acid(Cy3® carboxylic acid类似物)，非活性染料，非磺化试剂，在有机溶剂中有很高的溶解度，微溶于水。该染料可作为非活性荧光团用于对照试验和校准。
如果需要与胺类偶联和标记，请参考使用Cyanine3 NHS ester,或者水溶的 sulfo-Cyanine3 NHS ester。

Cy® is a trademark of GE Healthcare.

General properties

Appearance:	red powder
Molecular weight:	493.08
Molecular formula:	C₃₀H₃₇ClN₂O₂
CAS number:	1032678-01-5
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.
MSDS:	Download

Spectral properties

Excitation maximum, nm:	555
Extinction coefficient at excitation maximum, Lmol-1cm-1:	150000
Emission maximum, nm:	570
Fluorescence quantum yield:	0.31