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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
Reaction mass of bis[2,4-bis(2-methylbutan-2-yl)phenyl] 4-(2-methylbutan-2-yl)phenyl phosphite and 2,4-bis(2-methylbutan-2-yl)phenyl bis[4-(2-methylbutan-2-yl)phenyl] phosphite and tris[4-(2-methylbutan-2-yl)phenyl] phosphite.
EC Number:
700-485-5
CAS Number:
939402-02-5
Molecular formula:
Mixture of 4 components, the molecular formulae of which are: C33 H45 O3 P, C38 H55 O3 P, C43 H65 O3 P and C48 H75 O3 P
IUPAC Name:
Reaction mass of bis[2,4-bis(2-methylbutan-2-yl)phenyl] 4-(2-methylbutan-2-yl)phenyl phosphite and 2,4-bis(2-methylbutan-2-yl)phenyl bis[4-(2-methylbutan-2-yl)phenyl] phosphite and tris[4-(2-methylbutan-2-yl)phenyl] phosphite.

Type of Substance

Composition:
multi-constituent substance
Origin:
organic

Substance Identifiers open all close all

  • DVS005u
  • WESTON® 705
  • Weston 705
  • Compositions

    Boundary Composition(s) open all close all

    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Tris(p-tert-pentylphenyl) phosphite
    EC Number:
    212-731-4
    EC Name:
    Tris(p-tert-pentylphenyl) phosphite
    CAS Number:
    864-56-2
    Molecular formula:
    C33H45O3P
    IUPAC Name:
    Tris[4-(2-methylbutan-2-yl)phenyl] phosphite
    Constituent 2
    Chemical structure
    Reference substance name:
    Bis[2,4-bis(2-methylbutan-2-yl)phenyl] 4-(2-methylbutan-2-yl)phenyl phosphite
    CAS Number:
    1000027-06-4
    Molecular formula:
    C43 H65 O3 P
    IUPAC Name:
    Bis[2,4-bis(2-methylbutan-2-yl)phenyl] 4-(2-methylbutan-2-yl)phenyl phosphite
    Constituent 3
    Chemical structure
    Reference substance name:
    2,4-Bis(2-methylbutan-2-yl)phenyl bis[4-(2-methylbutan-2-yl)phenyl] phosphite
    CAS Number:
    1000027-04-2
    Molecular formula:
    C38 H55 O3 P
    IUPAC Name:
    2,4-Bis(2-methylbutan-2-yl)phenyl bis[4-(2-methylbutan-2-yl)phenyl] phosphite

    Legal Entity Composition(s) open all close all

    State Form:
    liquid


    Constituent 1
    Chemical structure
    Reference substance name:
    Tris(p-tert-pentylphenyl) phosphite
    EC Number:
    212-731-4
    EC Name:
    Tris(p-tert-pentylphenyl) phosphite
    CAS Number:
    864-56-2
    Molecular formula:
    C33H45O3P
    IUPAC Name:
    Tris[4-(2-methylbutan-2-yl)phenyl] phosphite
    Constituent 2
    Chemical structure
    Reference substance name:
    Bis[2,4-bis(2-methylbutan-2-yl)phenyl] 4-(2-methylbutan-2-yl)phenyl phosphite
    CAS Number:
    1000027-06-4
    Molecular formula:
    C43 H65 O3 P
    IUPAC Name:
    Bis[2,4-bis(2-methylbutan-2-yl)phenyl] 4-(2-methylbutan-2-yl)phenyl phosphite
    Constituent 3
    Chemical structure
    Reference substance name:
    2,4-Bis(2-methylbutan-2-yl)phenyl bis[4-(2-methylbutan-2-yl)phenyl] phosphite
    CAS Number:
    1000027-04-2
    Molecular formula:
    C38 H55 O3 P
    IUPAC Name:
    2,4-Bis(2-methylbutan-2-yl)phenyl bis[4-(2-methylbutan-2-yl)phenyl] phosphite

    Composition(s) generated upon use

    Other types of composition(s)