Sulfo-Cyanine5 tetrazine,水溶Cy5-四嗪 TCO (tetrazine – trans-cyclooctene) ligation is one of the fastest reactions used for bioconjugation. It is an inverse electron demand [4+2] cycloaddition that takes place between tetrazine and trans-cyclooctene or other strained olefin. Sulfo-Cyanine5 tetrazine is a fluorophore derivative bearing a tetrazine group for the TCO-ligation based labeling. This reagent possesses good aqueous solubility and stability in biological environments. General properties Appearance: dark blue solid Molecular weight: 864.09 Molecular formula: C42H46KN7O7S2 Solubility: good in water, DMF, DMSO Quality control: 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: 646 ε, L⋅mol−1⋅cm−1: 271000 Emission maximum, nm: 662 Fluorescence quantum yield: 0.28 CF260: 0.04 CF280: 0.04 Sulfo-Cyanine5 tetrazine,水溶Cy5-四嗪 叠氮化物 Dye azides Pyrene azide 1/ Pyrene azide 2 PEP azide Perylene azide BDP FL azide Coumarin 343 azide FAM azide, 5-isomer FAM azide, 6-isomer TAMRA azide, 5- isomer BDP TMR azide Cyanine3 azide Cyanine3.5 azide Cyanine5 azide Cyanine5.5 azide Cyanine7 azide Cyanine7.5 azide Sulfo-Cyanine3 azide Sulfo-Cyanine5 azide Sulfo-Cyanine7 azide N-羟基琥珀酰亚胺脂Dye NHS esters Pyrenebutyric acid NHS ester ROX NHS ester, pure 6- isomer BDP FL NHS ester FAM NHS ester Cyanine3 NHS ester Cyanine3.5 NHS ester Cyanine5 NHS ester Cyanine5.5 NHS ester Cyanine7 NHS ester Cyanine7.5 NHS ester Sulfo-Cyanine3 NHS ester Sulfo-Cyanine5 NHS ester sulfo-Cyanine5 bis-NHS ester Sulfo-Cyanine7 NHS ester