4-Ethynylbenzyl alcohol 97(Cat No.:M063962) is an organic compound featuring a benzyl alcohol moiety substituted with an ethynyl group at the para (4) position of the aromatic ring. This dual-functionality structure combines a terminal alkyne and a primary alcohol, enabling versatile reactivity in organic synthesis. It is commonly used in click chemistry, Sonogashira couplings, and the preparation of functionalized materials or bioactive molecules. The ethynyl group supports conjugation with azides, while the hydroxyl group allows for esterification or etherification. Its high purity (97%) ensures reliability in research and development applications.