Sulfo-Cyanine 5.5 is a water-soluble, hydrophilic fluorophore which possesses emission in far red area of the spectrum, an analog of Cy5.5. As with other cyanine dyes, sulfo-Cyanine 5.5 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-Cyanine 5.5 azide can be conjugated with terminal alkynes in the presence of copper(I) catalyst, or with cycloalkynes in copper free strain promoted reaction.
Molecular Weight:
1099.41 kDa
Purity:
95% (by 1H NMR and HPLC-MS).
Form:
Dark colored solid.
CAS Number:
[2382994-65-0]
Formula:
C43H45K3N6O13S4
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