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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
EC Number:
220-036-2
EC Name:
Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
CAS Number:
2611-82-7
Molecular formula:
C20H11N2O10S3.3Na
IUPAC Name:
1,3-naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt

Type of Substance

Composition:
mono-constituent substance
Origin:
organic

Substance Identifiers open all close all

  • 2611-82-7
  • Acid Red 18
  • Neelicol Ponceau 4R
  • Neelink Red PR
  • Compositions

    Boundary Composition(s) open all close all

    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    EC Number:
    220-036-2
    EC Name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    CAS Number:
    2611-82-7
    Molecular formula:
    C20H11N2O10S3.3Na
    IUPAC Name:
    1,3-naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt

    Legal Entity Composition(s) open all close all

    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    EC Number:
    220-036-2
    EC Name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    CAS Number:
    2611-82-7
    Molecular formula:
    C20H11N2O10S3.3Na
    IUPAC Name:
    1,3-naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    EC Number:
    220-036-2
    EC Name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    CAS Number:
    2611-82-7
    Molecular formula:
    C20H11N2O10S3.3Na
    IUPAC Name:
    1,3-naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    EC Number:
    220-036-2
    EC Name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    CAS Number:
    2611-82-7
    Molecular formula:
    C20H11N2O10S3.3Na
    IUPAC Name:
    1,3-naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    EC Number:
    220-036-2
    EC Name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    CAS Number:
    2611-82-7
    Molecular formula:
    C20H11N2O10S3.3Na
    IUPAC Name:
    1,3-naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt


    Constituent 1
    Chemical structure
    Reference substance name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    EC Number:
    220-036-2
    EC Name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    CAS Number:
    2611-82-7
    Molecular formula:
    C20H11N2O10S3.3Na
    IUPAC Name:
    1,3-naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    EC Number:
    220-036-2
    EC Name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    CAS Number:
    2611-82-7
    Molecular formula:
    C20H11N2O10S3.3Na
    IUPAC Name:
    1,3-naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt
    State Form:
    solid: bulk


    Constituent 1
    Chemical structure
    Reference substance name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    EC Number:
    220-036-2
    EC Name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    CAS Number:
    2611-82-7
    Molecular formula:
    C20H11N2O10S3.3Na
    IUPAC Name:
    1,3-naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt
    State Form:
    solid: particulate/powder


    Constituent 1
    Chemical structure
    Reference substance name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    EC Number:
    220-036-2
    EC Name:
    Trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene-4',6,8-trisulphonate
    CAS Number:
    2611-82-7
    Molecular formula:
    C20H11N2O10S3.3Na
    IUPAC Name:
    1,3-naphthalenedisulfonic acid, 7-hydroxy-8-((4-sulfo-1-naphthalenyl)azo)-, trisodium salt

    Composition(s) generated upon use

    Other types of composition(s)