Octamethylcyclotetrasiloxane

CAS Registry Number®

556-67-2

CAS Name

Octamethylcyclotetrasiloxane

Molecular Formula

C8H24O4Si4

Molecular Mass

296.62

Cite this Page

Octamethylcyclotetrasiloxane.   CAS Common Chemistry.   CAS, a division of the American Chemical Society, n.d.   http://commonchemistry.cas.org/detail?cas_rn=556-67-2 (retrieved 2024-11-21) (CAS RN: 556-67-2).  Licensed under the Attribution-Noncommercial 4.0 International License (CC BY-NC 4.0).

Compound Properties

  • Boiling Point (1)

    175 °C

  • Melting Point (1)

    17.5 °C

  • Density (1)

    0.9558 g/cm³

Source(s)

  • (1) Hazardous Substances Data Bank data were obtained from the National Library of Medicine (US)

Other Names and Identifiers

InChI

InChI=1S/C8H24O4Si4/c1-13(2)9-14(3,4)11-16(7,8)12-15(5,6)10-13/h1-8H3

InChIKey

InChIKey=HMMGMWAXVFQUOA-UHFFFAOYSA-N

SMILES

C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1

Canonical SMILES

O1[Si](O[Si](O[Si](O[Si]1(C)C)(C)C)(C)C)(C)C

Other Names for this Substance

  • Cyclotetrasiloxane, 2,2,4,4,6,6,8,8-octamethyl-
  • Cyclotetrasiloxane, octamethyl-
  • 2,2,4,4,6,6,8,8-Octamethylcyclotetrasiloxane
  • Octamethylcyclotetrasiloxane
  • NUC Silicone VS 7207

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Deleted or Replaced CAS Registry Numbers

83874-62-8, 104986-37-0, 117563-66-3, 1257661-59-8

CAS INSIGHTSTM
Targeted protein degrader structure, illustration