This compound, known as tert-butyldimethyl((tributylstannyl)methoxy)silane or TBDMS-O-CH₂-SnBu₃, is a silyl-protected derivative of (tributylstannyl)methanol. It serves as a stable reagent in organic synthesis for introducing the tributylstannylmethyl (Bu₃SnCH₂-) group. The tert-butyldimethylsilyl (TBDMS) protecting group enhances stability and allows for selective deprotection under mild conditions. It is particularly useful in the preparation of organotin reagents employed in cross-coupling reactions, such as the Stille coupling, and in radical-mediated processes for carbon-carbon bond formation. This makes it valuable for constructing complex molecules, including natural products and pharmaceuticals, where precise control over functional group transformations is essential.