

L-Luciferin Potassium Salt by Molecular Depot is a L-luciferin potassium salt, the enantiomer of the firefly luciferase substrate. Firefly luciferase is strictly specific for the D enantiomer: only D-luciferin is adenylated and oxidised to the excited-state product that emits light, and the L form is not turned over in that reaction. It is used as a stereochemical control in bioluminescence research, in luciferase mechanism studies and as a reference standard. Each unit contains 5 mg. MBP supplies Molecular Depot research reagents to research labs in the United States, Canada and worldwide.