1,3,5,7,9,11,13,15-Octamethylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane

CAS Registry Number®

17865-85-9
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CAS Name

1,3,5,7,9,11,13,15-Octamethylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane

Molecular Formula

C8H24O12Si8

Molecular Mass

536.95

Cite this Page

1,3,5,7,9,11,13,15-Octamethylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=17865-85-9 (retrieved 2024-08-11) (CAS RN: 17865-85-9).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Melting Point (1)

    231-258 °C (sublm)

  • Density (2)

    1.5 g/cm³

Source(s)

Other Names and Identifiers

InChI

InChI=1S/C8H24O12Si8/c1-21-9-22(2)12-25(5)14-23(3,10-21)16-27(7)17-24(4,11-21)15-26(6,13-22)19-28(8,18-25)20-27/h1-8H3

InChIKey

InChIKey=SOQGBGSEJYZNPS-UHFFFAOYSA-N

SMILES

C[Si]12O[Si]3(C)O[Si]4(C)O[Si](C)(O1)O[Si]5(C)O[Si](C)(O2)O[Si](C)(O3)O[Si](C)(O4)O5

Canonical SMILES

O1[Si]2(O[Si]3(O[Si]4(O[Si]1(O[Si]5(O[Si](O2)(O[Si](O3)(O[Si](O4)(O5)C)C)C)C)C)C)C)C

Other Names for this Substance

  • Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, 1,3,5,7,9,11,13,15-octamethyl-
  • Pentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane, octamethyl-
  • Octasilsesquioxane, octamethyl-
  • 1,3,5,7,9,11,13,15-Octamethylpentacyclo[9.5.1.13,9.15,15.17,13]octasiloxane
  • Methyl-T 8

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Deleted or Replaced CAS Registry Numbers

57348-79-5, 400003-06-7