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6689-19-6

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Basic Information
CAS No.: 6689-19-6
Name: 3,5,7-TRIPHENYLNONAMETHYLPENTASILOXANE
Molecular Structure:
Molecular Structure of 6689-19-6 (3,5,7-TRIPHENYLNONAMETHYLPENTASILOXANE)
Formula: C27H42O4Si5
Molecular Weight: 571.056
Synonyms: 1,1,1,3,5,7,9,9,9-Nonamethyl-3,5,7-triphenylpentasiloxane;
Density: 1.02 g/cm3
Melting Point: <0 °C
Boiling Point: 210-230 °C at 0.3 mmHg
Flash Point: >110 °C
Risk Codes: 36/37/38
Safety: 26-36/37/39
PSA: 36.92000
LogP: 5.66020
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Specification

The Pentasiloxane, 1, 1, 1, 3, 5, 7, 9, 9, 9-nonamethyl-3, 5, 7-triphenyl-, with the CAS registry number 6689-19-6, is also known as 1, 1, 1, 3, 5, 7, 9, 9, 9-Nonamethyl-3, 5, 7-triphenylpentasiloxane. This chemical's molecular formula is C27H42O4Si5 and molecular weight is 571.05. What's more, its systematic name is Trimethyl-[methyl-[methyl-(methyl-phenyl-trimethylsilyloxy-silyl)oxy-phenyl-silyl]oxy-phenyl-silyl]oxy-silane.

Preparation of Pentasiloxane, 1, 1, 1, 3, 5, 7, 9, 9, 9-nonamethyl-3, 5, 7-triphenyl-: this chemical is prepared by reaction of Dichloro-methyl-phenyl-silane with Chloro-trimethyl-silane. The reaction needs reagent H2O and solvent Toluene. The reaction time is 27 hours with reaction temperature of 20 °C. The yield is about 30 %.

The Pentasiloxane, 1, 1, 1, 3, 5, 7, 9, 9, 9-nonamethyl-3, 5, 7-triphenyl- can be obtained by Dichloro-methyl-phenyl-silane and Chloro-trimethyl-silane.

When you are using this chemical, please be cautious about it as the following:
As a chemical, it is irritating to eyes, respiratory system and skin. During using it, wear suitable protective clothing, gloves and eye/face protection. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1) SMILES: C[Si](C)(C)O[Si](C)(c1ccccc1)O[Si](C)(c2ccccc2)O[Si](C)(c3ccccc3)O[Si](C)(C)C
(2) InChI: InChI=1/C27H42O4Si5/c1-32(2,3)28-34(7,25-19-13-10-14-20-25)30-36(9,27-23-17-12-18-24-27)31-35(8,29-33(4,5)6)26-21-15-11-16-22-26/h10-24H,1-9H3
(3) InChIKey: FNZBSNUICNVAAM-UHFFFAOYAU