Chemical Information Catelog Number: F01-0008 Product Name: BDP 630/650 maleimide CAS Number: 2183473-31-4 Molecular Formula: C29H23N4BF2O4S Molecular Weight: 572.39 Purity: NMR 1H, HPLC-MS (95%) Solubility: good in DMF, DMSO Product Specification Appearance: dark colored solid ε, L⋅mol-1⋅cm-1: 97000 Fluorescence quantum Yield: 0.91 Storage Conditions: 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. Excitation Maximum (nm): 628 Emission Maximum (nm): 642BDP 630/650 is a far red emitting borondipyrromethene based fluorophore for the Cyanine5 channel. Because of its relatively long lifetime of the excited state, this dye is particularly useful for fluorescence lifetime related measurements. The reactive maleimide moiety allows to attach the dye to thiol groups in biomolecules, especially proteins and peptides.