4-(Trifluoromethyl)-1-cyclohexen-1-boronic acid pinacol ester , its cas register number is 683242-93-5. It also can be called 4,4,5,5-Tetramethyl-2-[4-(trifluoromethyl)cyclohex-1-en-1-yl]-1,3,2-dioxaborolane .