Samarium(II) iodide is an inorganic compound with the formula SmI2. When employed as a solution for organic synthesis, it is known as "Kagan's reagent". SmI2 is a green solid and its solutions are green as well. It is a strong one-electron reducing agent that is used in organic synthesis.
S 0931 (OTTO) Samarium(II) iodide, anhydrous, powder, ≥99.9% Cas no 32248-43-4 - used to promotes the cyanofluorination of aldehydes providing cyanofluorhydrins in good to excellent yield at room temperature in THF/HMPA.