Sulfo-Cyanine5.5 amine | 2183440-45-9

Product Introduction

Sulfo-Cyanine5.5 is a water soluble cyanine dye for far red / NIR applications such as in vivo imaging. The dye possesses four sulfonate groups that render it highly hydrophilic and water soluble. As well as other cyanines, sulfo-Cyanine5.5 has an outstanding extinction coefficient that makes it a bright fluorescent label for the far red region. This is an amine-containing fluorescent dye. The amine group is separated from the fluorophore by a relatively long linker that facilitates conjugation. The aliphatic primary amine group can be coupled with various electrophiles (activated esters, epoxides, etc), and also be used in enzymatic transamination labeling.

Chemical Information
Related CAS	2183440-46-0 (potassium salt)
Purity	NMR 1H, HPLC-MS (95%)
Solubility	good in water, DMF, DMSO
Appearance	dark blue solid

Product Specification
ε, L⋅mol-1⋅cm-1	235000
Excitation	673
Emission	691
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.