FAST DiI is an unsaturated analog of DiI (DiIC18(3)) that reportedly migrates ∼50% faster. It is weakly fluorescent in water but highly fluorescent and quite photostable when incorporated into membranes. It has an extremely high extinction coefficient and short excited-state lifetimes (∼1 nanosecond) in lipid environments. Once applied to cells, the dye diffuses laterally within the plasma membrane.This is the solid form of D3899 to facilitate direct application of crystals to membranes.
For Research Use Only. Not for use in diagnostic procedures.