Pentacyclo(9.5.1.13,9.15,15.17,13)octasiloxane, 1,3,5,7,9,11,13,15-octamethyl- structure

Pentacyclo(9.5.1.13,9.15,15.17,13)octasiloxane, 1,3,5,7,9,11,13,15-octamethyl-

1,3,5,7,9,11,13,15-octamethyl-2,4,6,8,10,12,14,16,17,18,19,20-dodecaoxa-1,3,5,7,9,11,13,15-octasilapentacyclo[9.5.1.13,9.15,15.17,13]icosane

Also Known As: Octamethylsilsesquioxane|Octamethyl-POSS|Permethyloctasilsesquioxane|PSS-Octamethyl substituted|Silsesquioxanes, Me|Octamethyloctasiloxane|Octa(methylsilsesquioxane)|Poly(Methyl Silsesquioxane)|Octasilsesquioxane, octamethyl-|SST-3M01|Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, 1,3,5,7,9,11,13,15-octamethyl-|PSS-Octamethyl substituted - 25G 25g|1,3,5,7,9,11,13,15-octamethyl-2,4,6,8,10,12,14,16,17,18,19,20-dodecaoxa-1,3,5,7,9,11,13,15-octasilapentacyclo[9.5.1.13,9.15,15.17,13]icosane|I14-34371|Pentacyclo(9.5.1.13,9.15,15.17,13)octasiloxane, 1,3,5,7,9,11,13,15-octamethyl-|octamethylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane|Pentacyclo[9.5.1.1(3,9).1(5,15).1(7,13)]octasiloxane, octamethyl-|1,3,5,7,9,11,13,15-Octamethylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane|Octamethyl-pentacyclo-[9.5.1.13,9.15,15.17,13 ]-octasiloxane|Octamethylpentacyclo[9.5.1.13,9.15,15.17,13]icosaneoctasiloxane|1,3,5,7,9,11,13,15-Octamethylpentacyclo[9.5.1.1~3,9~.1~5,15~.1~7,13~]octasiloxane|1,3,5,7,9,11,13,15-Octamethylpentacyclo[9.5.1.13,9.15,15.17,13]icosaneoctasiloxane|OCTAMETHYLPENTACYCLO[9.5.1.1(3),?.1?,(1)?.1?,(1)(3)]OCTASILOXANE|1,3,5,7,9,11,13,15-Octamethyl-1,3,5,7,9,11,13,15-octasila-2,4,6,8,10,12,14,16,17,18,19,20-dodecaoxapentacyclo[9.5.1.13,9.15,15.17,13]icosane|2,2 -Oxy-4,4 -oxy-6,6 -oxy-8,8 -oxybis(2,4,6,8-tetramethyl-1,3,5,7-tetraoxa-2,4,6,8-tetrasilacyclooctane)|2,4,6,8,10,12,14,16,17,18,19,20-Dodecaoxa-1,3,5,7,9,11,13,15-octasilapentacyclo[9.5.1.13,9.15,15.17,13]eicosane, 1,3,5,7,9,11,13,15-octamethyl-|PSS-OCTAMETHYL SUBSTITUTED;Pentacyclo[9.5.1.1(3,9).1(5,15).1(7,13)]octasiloxane, octamethyl-;Permethyloctasilsesquioxane;1,3,5,7,9,11,13,15-OCTAMETHYLPENTACYCLO-;Octamethylsilsesquioxane,1,3,5,7,9,11,13,15-Octamethylpentacyclo[9.5.1.13,9.15,15.17,13]octas

CAS: 68554-70-1
Molecular Formula C8H24O12Si8
Molecular Weight 535.9422 g/mol
LogP 0.8032
Topological Polar Surface Area 111.0 Ų
Hydrogen Bond Donors 0
Hydrogen Bond Acceptors 12
Rotatable Bonds 0
Exact Mass 535.9422
Monoisotopic Mass 535.9422
Heavy Atoms 28
Complexity 456.0

Chemical Identifiers

CAS Number 68554-70-1
SMILES C[Si]12O[Si]3(O[Si]4(O[Si](O1)(O[Si]5(O[Si](O2)(O[Si](O3)(O[Si](O4)(O5)C)C)C)C)C)C)C
InChIKey SOQGBGSEJYZNPS-UHFFFAOYSA-N

Product Overview

Pentacyclo(9.5.1.13,9.15,15.17,13)octasiloxane, 1,3,5,7,9,11,13,15-octamethyl- (CAS 68554-70-1), with molecular formula C8H24O12Si8 and molecular weight 535.9422 g/mol. IUPAC: 1,3,5,7,9,11,13,15-octamethyl-2,4,6,8,10,12,14,16,17,18,19,20-dodecaoxa-1,3,5,7,9,11,13,15-octasilapentacyclo[9.5.1.13,9.15,15.17,13]icosane.

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Safety Data Sheet (MSDS / SDS) View the Laboratory Chemical Safety Summary (LCSS) on PubChem — includes GHS classifications, hazard statements, first aid measures, and handling precautions.
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Pentacyclo(9.5.1.13,9.15,15.17,13)octasiloxane, 1,3,5,7,9,11,13,15-octamethyl- is a custom synthesis product. We offer services from milligram to kilogram scale.

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