Cyanine5.5 tetrazine,Cy5.5熒光染料

Cyanine5.5 is a far red emitting dye for in vivo imaging and applications requiring low background. This Cyanine5.5 derivative contains tetrazine moiety that reacts with trans-cyclooctenes, cyclopropenes, and some strained cyclooctynes with the formation of stable conjugates.

This labeling reaction is extremely fast, and can be used in vivo.

General properties

Appearance:	dark blue solid
Mass spec M+ increment:	737.4
Molecular weight:	911.96
Molecular formula:	C50H52N7F6OP
Solubility:	good in DCM, DMF, DMSO
uality conrol:	NMR 1H, HPLC-MS (95%)
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.

Spectral properties

Excitation maximum, nm:	684
ε, L⋅mol−1⋅cm−1:	209000
Emission maximum, nm:	710
Fluorescence quantum yield:	0.2
CF260:	0.07
CF280:	0.03

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