4,4,5,5-Tetramethyl-2-phenyl-1,3,2-dioxaborolane（Cat No.:L045724）is a boronic ester featuring a phenyl ring attached to a dioxaborolane core with four methyl groups enhancing steric stability. Commonly used in Suzuki–Miyaura cross-coupling reactions, this compound serves as a stable and efficient arylboron reagent for forming carbon–carbon bonds under mild conditions. Its high reactivity and good shelf stability make it a preferred choice in the synthesis of pharmaceuticals, agrochemicals, and functional materials. The dioxaborolane ring protects the boron center, facilitating easy handling and compatibility with a variety of functional groups.