4-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)tetrahydro-2H-thiopyran 1,1-dioxide 250mg

4-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)tetrahydro-2H-thiopyran 1,1-dioxide 250mg