1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane

Basic Information

View in Editor

CAS Number

3982-82-9

Molecular Formula

C28H32O2Si3

Molecular Weight

484.82 g/mol

Chemical Classification

Basic Chemical Raw Materials Organic Chemicals Hydrocarbons

Basic Physical Properties

Melting Point

-25 °C

Boiling Point

215 ºC (0.5 mmHg)

Flash Point

214 °F

Refractive Index

n20/D 1.559

SMILES

View in Editor

C[Si](C)(O[Si](C)(c1ccccc1)c2ccccc2)O[Si](C)(c3ccccc3)c4ccccc4

InChI

InChI=1S/C28H32O2Si3/c1-31(2,29-32(3,25-17-9-5-10-18-25)26-19-11-6-12-20-26)30-33(4,27-21-13-7-14-22-27)28-23-15-8-16-24-28/h5-24H,1-4H3

InChIKey

YFCVAZGXPLMNDG-UHFFFAOYSA-N

LogP

4.500800000000004

Topological Polar Surface Area

18.46 Å²

Hydrogen Bond Donor/Acceptor

0 / 2

Complexity

500

Safety Information

View Safety Information

Hazard Statement

H315 Causes skin irritation
Skin corrosion/irritation

H319 Causes serious eye irritation
Serious eye damage/eye irritation

H335 May cause respiratory irritation
Specific target organ toxicity, single exposure; Respiratory tract irritation

Synonyms & References

English

1,1,5,5-Tetraphenyltetramethyltrisiloxane
1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane
Phenylmethylsiloxane?Oligomer
1,1,5,5-TETRAPHENYL-1,3,3,5-TETRAMETHYLTRISILOXANE
dimethyl-bis[[methyl(diphenyl)silyl]oxy]silane
DOW CORNING 704 (EU) DIFFUSION PUMP FLUID
1,1,5,5-tetraphenyl-1,3,3,5-tetramethyltrisoloxane
1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyl-trisiloxan
2.2.6.6-tetraphenyl-4.4-dimethyl-2.4.6-trisila-3.5-dioxaheptane
EINECS 223-620-5
Trisiloxane,1,3,3,5-tetramethyl-1,1,5,5-tetraphenyl

MDL Number

MFCD00053661

FAQ

What are the physical and chemical properties of 1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane (CAS: 3982-82-9)?

1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane is a highly symmetrical organosilicon compound. It is a colorless, odorless, and viscous liquid with a high molecular weight, approximately 472.34 g/mol. It has low aqueous solubility but is miscible with organic solvents. This compound is relatively inert and does not react readily with common reagents. It is typically used in the preparation of various organosilicon materials and as a precursor in industrial applications.

How is 1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane (CAS: 3982-82-9) typically synthesized?

1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane is usually synthesized through a multistep process involving the reaction of triphenylsilane with methyl silanes in the presence of a catalytic amount of a Lewis acid such as aluminum chloride. The synthesis involves careful control of reaction conditions to achieve high yield and selectivity. The product is typically purified by distillation to ensure high purity.

What industries use 1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane (CAS: 3982-82-9)?

1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane is primarily used in the polymer industry for the production of silicone rubbers and coatings. It is also employed in the electronics industry as a component in encapsulants and potting compounds for semiconductors. Additionally, it finds use in the pharmaceutical sector for the synthesis of certain organosilicon pharmaceuticals and in sensors as a component of sensing materials.

What precautions should be taken when handling 1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane (CAS: 3982-82-9)?

When handling 1,3,3,5-Tetramethyl-1,1,5,5-tetraphenyltrisiloxane, it is important to follow standard laboratory safety procedures. Gloves, goggles, and a lab coat should be worn at all times. Work should be conducted in a fume hood to minimize exposure. Spills should be cleaned up using appropriate absorbent materials and disposed of according to local regulations. Always refer to the Safety Data Sheet (SDS) for specific handling instructions and emergency procedures.