This compound is primarily used in organic synthesis as a protected form of 4-hydroxybenzaldehyde, where the trimethylsilyl (TMS) group acts as a protecting group for the hydroxyl functionality. It allows chemists to perform reactions on other parts of the molecule without affecting the aldehyde group. Additionally, it serves as an intermediate in the production of pharmaceuticals, agrochemicals, and specialty chemicals. The TMS group can be easily removed under mild conditions, making it a versatile reagent in multi-step synthetic processes. It is also employed in the development of liquid crystals and advanced materials due to its ability to modify molecular structures precisely.