1,1-Diphenyl-2-propyn-1-ol is an organic compound characterized by a tertiary propargylic alcohol structure flanked by two phenyl groups. It serves as a versatile synthetic building block, particularly valued for its use in Sonogashira coupling reactions and as a precursor for various functionalized molecules. Its structure allows for further transformations, such as oxidation to the corresponding ketone or use in the synthesis of heterocycles. A significant application of this compound is in materials science, where it acts as a key intermediate in the synthesis of organic light-emitting diode (OLED) materials. Specifically, it is utilized in the preparation of hole-transporting materials (HTMs) and host materials for phosphorescent OLEDs. Derivatives based on its diphenylpropargyl alcohol core contribute to the thermal stability and charge-transport properties essential for high-performance optoelectronic devices. While not a commodity chemical, it is a specialized reagent available from suppliers of fine chemicals and advanced intermediates for both organic synthesis and materials research. Standard safety precautions for handling organic compounds, including the use of personal protective equipment, are recommended due to its potential irritant properties.