Chemical Information Catelog Number: R02-0014 Product Name: BDP 581/591 alkyne Molecular Formula: C25H22N3BF2O Molecular Weight: 429.27 Purity: NMR 1H, HPLC-MS (95%) Solubility: good in DCM, DMF, DMSO CAS Number: 2006345-34-0 Product Specification Appearance: dark colored solid ε, L⋅mol-1⋅cm-1: 104000 Fluorescence quantum Yield: 0.83 Excitation Maximum (nm): 585 Emission Maximum (nm): 594BDP 581/591 is a borondipyrromethene fluorophore that is moderately hydrophobic. It is useful for fluorescence polarization assays, and microscopy. Due to its significant two photon absorption cross section, the dye is also useful for two photon experiments. This is a terminal alkyne for copper-catalyzed Click chemistry.