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

Basic Information

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CAS Number

68937-55-3

Molecular Formula

C17H44O6Si4

Molecular Weight

456.88 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Ethers

Basic Physical Properties

Melting Point

-30°C

Boiling Point

>205°C

Density

1.04 g/mL at 25 °C

Flash Point

>230 °F

Solubility

H2O: above 43 °Cinsoluble

Refractive Index

n20/D 1.45(lit.)

SMILES

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CC(COCCOCCC[Si](C)(O[Si](C)(C)C)O[Si](C)(C)O[Si](C)(C)C)O

InChI

InChI=1S/C17H44O6Si4/c1-17(18)16-20-14-13-19-12-11-15-27(10,22-25(5,6)7)23-26(8,9)21-24(2,3)4/h17-18H,11-16H2,1-10H3

InChIKey

GVSYDZASZJTRJM-UHFFFAOYSA-N

LogP

4.2839000000000045

Topological Polar Surface Area

66.38000000000001 Å²

Hydrogen Bond Donor/Acceptor

1 / 6

Synonyms & References

English

Polysiloxanes, di-Me,3-hydroxypropyl Me, ethoxylated propoxylated
DIMETHYLSILOXANE, PROPYLENE OXIDE
Dimethylsiloxanepropyleneoxideethyleneoxideblockcopo
ETHYLENE OXIDE BLOCK COPOLYMER
poly(dimethylsiloxane-co-me(3-oh-propyl)-siloxane
Poly[dimethylsiloxane-co-methyl(3-hydroxypropyl)siloxane]-graft-poly(ethylene
Silwet L 7220
Silwet L 7230
Silwet L 7607
T 5851
Tegopren 5840
Wacker NM 4223
Wacker NM 4393K
Wacker NM 4395K
XF-J 2557
Y 10733
Y 10734
Water-soluble silicone oil

MDL Number

MFCD00240066

FAQ

What are the physical and chemical properties of 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.

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

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%.

What industries use 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 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.

What precautions should be taken 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)?

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.