Chemical Information Catelog Number: R09-0001 Product Name: BDP 581/591 DBCO Molecular Formula: C43H39N4BF2O2 Molecular Weight: 692.60 Purity: NMR 1H, HPLC-MS (95%) Solubility: good in DMF, DMSO, DCM Product Specification Appearance: dark purple solid ε, L⋅mol-1⋅cm-1: 104000 Fluorescence quantum Yield: 0.83 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): 585 Emission Maximum (nm): 594BDP 581/591 is a borondipyrromethene dye with a conjugated olefinic system. It can be used either as a regular fluorophore, or as a probe for the detection of reactive oxygen species (ROS); after oxidation, its fluorescence moves to the green part of the spectrum. This is a version of the dye containing cyclooctyne. The DBCO (azodibenzocyclooctyne) moiety can be conjugated with azides yielding stable triazole conjugates.