Oct 18, 2018 · To synthesize 24k-C-BODIPY , a solution of 0.3 M aqueous solution of copper(II) sulfate pentahydrate (4 mL, 0.0013 mmol) and 1M aqueous solution of sodium ascorbate (26 mL, 0.026) was added to a solution of BODIPY-FL-azide (5 mg, 0.013 mmol) and 24k-C-yne in N,N’-dimethylformamide/water (1 mL, 1:1). After stirring at 80oC for 18 h, the