1-{2-[3-(1,1,1,3,5,5,7,7,7-Nonamethyl-3-tetrasiloxanyl)propoxy]ethoxy}-2-propanol(CAS: 68937-55-3)

1-{2-[3-(1,1,1,3,5,5,7,7,7-Nonamethyl-3-tetrasiloxanyl)propoxy]ethoxy}-2-propanol (CAS: 68937-55-3) is a liquid with a high molecular weight due to its complex structure. It has a relatively low solubility in water but is soluble in organic solvents. It is not highly reactive under normal conditions, but it can undergo hydrolysis under acidic or basic conditions. Its density is approximately 1.05 g/cm³ and its flash point is above 100°C.

1-{2-[3-(1,1,1,3,5,5,7,7,7-Nonamethyl-3-tetrasiloxanyl)propoxy]ethoxy}-2-propanol (CAS: 68937-55-3) is synthesized through a multi-step process involving siloxane substitution and alcoholation reactions. The synthesis typically requires catalysts such as tin(II) 2-ethylhexanoate and involves rigorous purification steps to ensure high purity. The yield is usually around 85-90%.

1-{2-[3-(1,1,1,3,5,5,7,7,7-Nonamethyl-3-tetrasiloxanyl)propoxy]ethoxy}-2-propanol (CAS: 68937-55-3) is primarily used in the semiconductor industry for its use as a surfactant in etching solutions. It is also used in the pharmaceutical industry as a precursor in the synthesis of organosilicon compounds and in polymer industries for its solvent properties.

When handling 1-{2-[3-(1,1,1,3,5,5,7,7,7-Nonamethyl-3-tetrasiloxanyl)propoxy]ethoxy}-2-propanol (CAS: 68937-55-3), it is essential to wear appropriate personal protective equipment (PPE), including gloves, goggles, and a lab coat. This compound should be handled in a well-ventilated area or a fume hood to avoid inhalation risks. In case of a spill, it should be cleaned up with appropriate materials and disposed of according to local regulations. Refer to the Safety Data Sheet (SDS) for detailed handling and safety information.