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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Identification

Chemical structure
Display Name:
Octamethylcyclotetrasiloxane
EC Number:
209-136-7
EC Name:
Octamethylcyclotetrasiloxane
CAS Number:
556-67-2
Molecular formula:
C8H24O4Si4
IUPAC Name:
2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane

Type of Substance

Composition:
mono-constituent substance
Origin:
organic

Substance Identifiers open all close all

  • 209-136-7
  • 556-67-2
  • D4
  • Octamethylcyclotetrasiloxane
  • D4
  • D4
  • DOW CORNING(R) 244 FLUID
  • F-28
  • F-42S
  • KF-994
  • OCTAMETHYLCYCLOTETRASILOXANE
  • Octame.cy.tetrasil
  • SF 1173
  • SF 1173
  • SILBIONE TETRAMERE D4
  • T-07V
  • T-07v
  • T-206
  • TETRAMERE D4
  • VS-7207
  • D4
    (Acronym)

    Compositions

    Boundary Composition(s) open all close all

    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane

    Legal Entity Composition(s) open all close all

    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane
    State Form:
    other: not relevant, as the substance is a monomer imported via finished products.


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane
    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane
    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane
    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane
    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane
    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane
    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane
    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane
    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane


    Constituent 1
    Chemical structure
    Reference substance name:
    Octamethylcyclotetrasiloxane
    EC Number:
    209-136-7
    EC Name:
    Octamethylcyclotetrasiloxane
    CAS Number:
    556-67-2
    Molecular formula:
    C8H24O4Si4
    IUPAC Name:
    2,2,4,4,6,6,8,8-octamethyl-1,3,5,7,2,4,6,8-tetroxatetrasilocane

    Composition(s) generated upon use

    Other types of composition(s)