Carbinol (Hydroxyl) Terminated Polydimethylsiloxane CAS#67674-67-3

Alpha-[3-[1,3,3,3-tetramethyl-1-(trimethylsilyl-oxy)disiloxanyl]propyl-omega-hydroxypolyoxyethylene], an organosilicon compound (CAS 67674-67-3), consists of both siloxane and polyoxyethylene segments, making it a versatile amphiphilic molecule. Typically, this compound appears as a colorless to pale yellow viscous liquid, with its molecular weight varying between 222.51 to 324.64 g/mol, depending on the length of the polyoxyethylene chain. The compound’s structure effectively combines the hydrophobic properties of heptamethyltrisiloxane with the hydrophilic nature of polyoxyethylene, making it highly effective as a surfactant and emulsifier. 

It is commonly used in various applications such as cosmetics, coatings, and textiles. Known for its excellent surface activity, thermal stability, and compatibility with organic systems, this compound plays a crucial role in the synthesis of silicone-polyether copolymers. Typically available in grades of 98-99% purity, it is supplied in sealed containers to maintain its quality and prevent moisture absorption, making it ideal for use in sensitive industrial applications.

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