aladdin 阿拉丁 S171391 磺化花青5.5叠氮化物 2382994-65-0 95%

中文名：磺化花青5.5叠氮化物

英文名：Sulfo-Cyanine5.5 azide

纯度：≥95%

货号：S171391

Cas号：2382994-65-0

存储温度：避光,-20°C储存,充氩

运输条件：超低温运输

产品介绍：

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

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