Na-Ascorbate - click chemistry grade

Na-Ascorbate can be used as a reduction reagent for Cu (I) -catalyzed Alkyne-Azide click chemistry reactions (CuAAC) . It catalyzes the reduction of Cu (II) sources such as CuSO 4thereby releasing catalytically reactive Cu (I) ions. Ideally, solutions should be freshly prepared in ddH 2O shortly before use. Alternatively, a stock solution can be prepared, stored at -20C and freshly by diluted shortly before use. Please note: Do not use solutions that appear brown. Freshly prepared, fully functional Na-Ascorbate solutions are colorless and turn brown upon oxidization thereby loosing their reduction capability.