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在色谱分析、有机合成和交叉偶联反应领域已被 0 篇同行评审文献引用。
Sulfo-Cyanine5.5 is a water-soluble, hydrophilic fluorophore which possesses emission in far red area of the spectrum, an analog of Cy5.5®. As other cyanine dyes, sulfo-Cyanine5.5 has an outstanding molar extinction coefficient which gives rise to its bright fluorescence.
The molecule contains four sulfo groups that provide hydrophilicity and negative charge to the fluorophore - this minimizes non-specific binding.
The azide group of sulfo-Cyanine5.5 azide can be conjugated with terminal alkynes in the presence of copper(I) catalyst, or with cycloalkynes in copper free strain promoted reaction.
Spectral properties:
Excitation/absorption maximum, nm: 673
ε, L⋅mol−1⋅cm−1: 211000
Emission maximum, nm: 691
Fluorescence quantum yield: 0.21
CF260: 0.09
CF280: 0.11