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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
Disodium 4,5-dichloro-2-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulphonatophenyl)-1H-pyrazol-4-yl]azo]benzenesulphonate
EC Number:
265-633-9
EC Name:
Disodium 4,5-dichloro-2-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulphonatophenyl)-1H-pyrazol-4-yl]azo]benzenesulphonate
CAS Number:
65212-76-2
Molecular formula:
C16H12Cl2N4O7S2.2Na
IUPAC Name:
disodium 4,5-dichloro-2-{[3-methyl-5-oxo-1-(3-sulfonatophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate

Type of Substance

Composition:
mono-constituent substance
Origin:
organic

Substance Identifiers open all close all

  • Benzenesulfonic acid, 4,5-dichloro-2-[[4,5-dihydro-3-methyl-5-oxo-1- (3-sulfophenyl)-1H-pyrazol-4-yl]azo]-, disodium salt (9CI)
  • C.I. Pigment Yellow 183, Na-salt
  • Dinatrium-4,5-dichlor-2-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfonatophenyl) -1H-pyrazol-4-yl]azo]benzolsulfonat
  • Paliotol Gelb K 1700 Na-Salz
  • Paliotol Yellow K 1700, disodium salt
  • Pigment Yellow 183 (Dinatriumsalz)
  • Compositions

    Boundary Composition(s) open all close all

    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium 4,5-dichloro-2-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulphonatophenyl)-1H-pyrazol-4-yl]azo]benzenesulphonate
    EC Number:
    265-633-9
    EC Name:
    Disodium 4,5-dichloro-2-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulphonatophenyl)-1H-pyrazol-4-yl]azo]benzenesulphonate
    CAS Number:
    65212-76-2
    Molecular formula:
    C16H12Cl2N4O7S2.2Na
    IUPAC Name:
    disodium 4,5-dichloro-2-{[3-methyl-5-oxo-1-(3-sulfonatophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate

    Legal Entity Composition(s) open all close all

    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    Disodium 4,5-dichloro-2-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulphonatophenyl)-1H-pyrazol-4-yl]azo]benzenesulphonate
    EC Number:
    265-633-9
    EC Name:
    Disodium 4,5-dichloro-2-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulphonatophenyl)-1H-pyrazol-4-yl]azo]benzenesulphonate
    CAS Number:
    65212-76-2
    Molecular formula:
    C16H12Cl2N4O7S2.2Na
    IUPAC Name:
    disodium 4,5-dichloro-2-{[3-methyl-5-oxo-1-(3-sulfonatophenyl)-4,5-dihydro-1H-pyrazol-4-yl]diazenyl}benzenesulfonate

    Composition(s) generated upon use

    Other types of composition(s)