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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
1,3,5-trimethyl-1,1,3,5,5-pentaphenyltrisiloxane
EC Number:
222-222-9
EC Name:
1,3,5-trimethyl-1,1,3,5,5-pentaphenyltrisiloxane
CAS Number:
3390-61-2
Molecular formula:
C33H34O2Si3
IUPAC Name:
4-methyl-2,2,4,6,6-pentaphenyl-3,5-dioxa-2,4,6-trisilaheptane

Type of Substance

Composition:
mono-constituent substance
Origin:
organic

Substance Identifiers open all close all

  • HS-Group Silicone Diffusion Pump Oil (OI-808-5)
  • HS-Group Silikon-Diffusionspumpenöl (OI-808-5)
  • Compositions

    Boundary Composition(s) open all close all

    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    1,3,5-trimethyl-1,1,3,5,5-pentaphenyltrisiloxane
    EC Number:
    222-222-9
    EC Name:
    1,3,5-trimethyl-1,1,3,5,5-pentaphenyltrisiloxane
    CAS Number:
    3390-61-2
    Molecular formula:
    C33H34O2Si3
    IUPAC Name:
    4-methyl-2,2,4,6,6-pentaphenyl-3,5-dioxa-2,4,6-trisilaheptane

    Legal Entity Composition(s) open all close all

    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    1,3,5-trimethyl-1,1,3,5,5-pentaphenyltrisiloxane
    EC Number:
    222-222-9
    EC Name:
    1,3,5-trimethyl-1,1,3,5,5-pentaphenyltrisiloxane
    CAS Number:
    3390-61-2
    Molecular formula:
    C33H34O2Si3
    IUPAC Name:
    4-methyl-2,2,4,6,6-pentaphenyl-3,5-dioxa-2,4,6-trisilaheptane
    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    1,3,5-trimethyl-1,1,3,5,5-pentaphenyltrisiloxane
    EC Number:
    222-222-9
    EC Name:
    1,3,5-trimethyl-1,1,3,5,5-pentaphenyltrisiloxane
    CAS Number:
    3390-61-2
    Molecular formula:
    C33H34O2Si3
    IUPAC Name:
    4-methyl-2,2,4,6,6-pentaphenyl-3,5-dioxa-2,4,6-trisilaheptane

    Composition(s) generated upon use

    Other types of composition(s)