Chemical Information Catelog Number: R08-0001 Product Name: BDP 581/591 tetrazine Molecular Formula: C32H28N7BF2O Molecular Weight: 575.42 Purity: NMR 1H, HPLC-MS (95%) Solubility: well soluble in DMF, DMSO, dichloromethane, toluene Product Specification Appearance: colorless 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 red emission. The dye exhibits high emission quantum yield and molar extinction coefficient, relatively long fluorescence lifetime and two-photon cross section. Additionally, it can be used as an intracellular ROS sensor. This tetrazine derivative allows to conjugate the fluorophore with various strained dienophiles like trans-cyclooctenes in a fast reaction called TCO-ligation.