Cyanine5 alkyne Cat. # Quantity Price A30B0 1mg 1760.00 B30B0 5mg 3360.00 D30B0 25mg 6560.00 E30B0 50mg 11120.00 F30B0 100mg 17600.00 Cyanine5 alkyne for Click Chemistry, an analog of Cy5® alkyne. With this product, deeply colored, and photostable Cyanine5 fluorophore can be attached to various molecules via Click Chemistry reaction with azides. This alkyne is non-water soluble, but it can be dissolved in DMF or DMSO prior to reaction, and added to aqueous reaction mixture. With our labeling protocol, the labeling reaction is very efficient, and high-yielding. Various substrates bearing azides can be used for the labeling, including azido-labeled biomolecules, polymers, and solid surfaces. General properties Appearance: dark blue powder Molecular weight: 556.18 Molecular formula: C35H42ClN3O Solubility: good in dichloromethane, DMF, DMSO, alcohols, low in water 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. Spectral properties Excitation maximum, nm: 646 ε, L⋅mol−1⋅cm−1: 250000 Emission maximum, nm: 662 Fluorescence quantum yield: 0.2