Cyanine3 tetrazine,Cy3 tetrazine Cyanine3 tetrazine is a fluorescent dye with tetrazine moiety for a conjugation reaction called TCO (trans-cyclooctene) ligation. Actually, tetrazines react not only with trans-cyclooctenes, but also with (methyl)cyclopropenes and strained non-benzo-fused cycloalkynes. Cyanine3 is a moderay hydrophobic dye, enabling labeling in non-aqueous environment as well as in aqueous media containing some organic co-solvent like acetonitrile or DMSO. For reactions in purely aqueous media, a sulfonated version of this reagent is available. General properties Appearance: dark red solid Mass spec M+ increment: 611.4 Molecular weight: 727.64 Molecular formula: C40H46N7BF4O Solubility: good in DCM, DMSO, DMF 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: 555 ε, L⋅mol−1⋅cm−1: 150000 Emission maximum, nm: 570 Fluorescence quantum yield: 0.31 CF260: 0.04 CF280: 0.09 Cyanine3 tetrazine,Cy3 tetrazine 马来酰亚胺 Dye maleimides Pyrene maleimide BDP FL maleimide Cyanine3 maleimide Cyanine5 maleimide Cyanine5.5 maleimide Cyanine7 maleimide Cyanine7.5 maleimide Sulfo-Cyanine3 maleimide Sulfo-Cyanine5 maleimide 伯胺 Primary amine BDP FL amine Cyanine3 amine Cyanine5 amine Cyanine5.5 amine Cyanine7 amine Cyanine7.5 amine Sulfo-Cyanine5 amine Sulfo-Cyanine7 amine 酰肼 Dye hydrazides Pyrene hydrazide BDP FL hydrazide Cyanine3 hydrazide Cyanine5 Boc-hydrazide Cyanine5 hydrazide Cyanine5.5 hydrazide Cyanine7 hydrazide Cyanine7.5 hydrazide