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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

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Reference substances

Reference substances

Currently viewing:
IUPAC name:
decasodium 2-[(1E)-2-{2-sulfonato-4-[(1E)-2-{3-sulfonato-4-[(1E)-2-{2-sulfonato-4-[(1E)-2-{4-[(1E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]phenyl}ethenyl]phenyl}diazen-1-yl]phenyl}ethenyl]-5-[(1E)-2-{4-[(1E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]benzene-1-sulfonate 2-[(1E)-2-{2-sulfonato-4-[(1E)-2-{4-[(1E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]phenyl}ethenyl]-5-[(1E)-2-{4-[(1E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]benzene-1-sulfonate

Inventory

EC number:
215-397-8
EC name:
Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-nitro-, disodium salt, reaction products with 4-[(4-aminophenyl)azo]benzenesulfonic acid, sodium salts
CAS number:
1325-54-8
Description:
This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 40215.
CAS number:
1325-54-8
Synonyms
Names:
Identifier:
IUPAC name
Reaction mass of Benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-[2-[4-[2-(4-sulfophenyl)diazenyl]phenyl]diazenyl]-, sodium salt and Benzenesulfonic acid, 3,3'-azobis[6-[2-[2-sulfo-4-[[4-[(4-sulfophenyl)azo]phenyl]azo]phenyl]ethenyl]-, sodium salt
Identifier:
IUPAC name
Reaction mass of Tetrasodium 5-[[4-[(4-sulfonatophenyl)diazenyl]phenyl] diazenyl]-2-[2-[2-sulfonato-4-[[4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]phenyl] ethenyl]benzenesulfonate and Hexasodium 2-((E)-2-sulfonato-4-((E)-(3-sulfonato-4-((E)-2-sulfonato-4-((E)-(4-((E)-(4-sulfonatophenyl)diazenyl)phenyl) diazenyl)styryl)phenyl)diazenyl)styryl)-5-((E)-(4-((E)-(4-sulfona-tophenyl)diazenyl) phenyl)diazo)benzenesulfonate.
Identifier:
IUPAC name
benzenesulfonic acid, 2,2'-(1,2-ethenediyl)bis[5-nitro-, disodium salt, reaction products with 4-[(4-aminophenyl)azo]benzenesulfonic acid, sodium salts
Identifier:
IUPAC name
decasodium 2-[(E)-2-{2-sulfonato-4-[(E)-2-{3-sulfonato-4-[(E)-2-{2-sulfonato-4-[(E)-2-{4-[(E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]phenyl}ethenyl]phenyl}diazen-1-yl]phenyl}ethenyl]-5-[(E)-2-{4-[(E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]benzene-1-sulfonate 2-[(E)-2-{2-sulfonato-4-[(E)-2-{4-[(E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]phenyl}ethenyl]-5-[(E)-2-{4-[(E)-2-(4-sulfonatophenyl)diazen-1-yl]phenyl}diazen-1-yl]benzene-1-sulfonate
Identifier:
IUPAC name
not available
Identifier:
other: Molecular formula
C38H24N8Na4O12S4 C52H32N10Na6O18S6
Identifier:
other: Molecular formula
C38H24N8Na4O12S4 and C52H32N10Na6O18S6
Identifier:
other: Molecular formula
C90H56N18Na10O30S10
Identifier:
other: SMILES notation
[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]S(=O)(=O)C1=CC=C(C=C1)\N=N\C1=CC=C(C=C1)\N=N\C1=CC=C(\C=C\C2=CC=C(C=C2S([O-])(=O)=O)\N=N\C2=CC=C(C=C2)\N=N\C2=CC=C(C=C2)S([O-])(=O)=O)C(=C1)S([O-])(=O)=O.[O-]S(=O)(=O)C1=CC=C(C=C1)\N=N\C1=CC=C(C=C1)\N=N\C1=CC(=C(\C=C\C2=CC=C(C=C2S([O-])(=O)=O)\N=N\C2=CC(=C(\C=C\C3=C(C=C(C=C3)\N=N\C3=CC=C(C=C3)\N=N\C3=CC=C(C=C3)S([O-])(=O)=O)S([O-])(=O)=O)C=C2)S([O-])(=O)=O)C=C1)S([O-])(=O)=O
Identifier:
other: SMILES notation
[Na+].[Na+].[Na+].[Na+].[O-][S](=O)(=O)c1ccc(cc1)N=Nc2ccc(cc2)N=Nc3ccc(\C=C\c4ccc(cc4[S]([O-])(=O)=O)N=Nc5ccc(cc5)N=Nc6ccc(cc6)[S]([O-])(=O)=O)c(c3)[S]([O-])(=O)=O [Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-][S](=O)(=O)c1ccc(cc1)N=Nc2ccc(cc2)N=Nc3ccc(\C=C\c4ccc(cc4[S]([O-])(=O)=O)N=Nc5ccc(\C=C\c6ccc(cc6[S]([O-])(=O)=O)N=Nc7ccc(cc7)N=Nc8ccc(cc8)[S]([O-])(=O)=O)c(c5)[S]([O-])(=O)=O)c(c3)[S]([O-])(=O)=O
Identifier:
other: SMILES notation
not relevant
Reaction mass of Tetrasodium 5-[[4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]-2-[2-[2-sulfonato-4-[[4-[(4-sulfonatophenyl)diazenyl]phenyl]diazenyl]phenyl]ethenyl]benzenesulfonate and Hexasodium 2-((E)-2-sulfonato-4-((E)-(3-sulfonato-4-((E)-2-sulfonato-4-((E)-(4-((E)-(4-sulfonatophenyl)diazenyl)phenyl)diazenyl)styryl)phenyl)diazenyl)styryl)-5-((E)-(4-((E)-(4- sulfona-tophenyl)diazenyl)phenyl)diazenyl)benzenesulfonate.

Molecular and structural information

Molecular formula:
Molecular formula of the main constituents:
(1) C38H24N8Na4O12S4
(2) C52H32N10Na6O18S6
Molecular weight:
ca. 1 004 - 1 414
SMILES notation:
[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[Na+].[O-]S(=O)(=O)C1=CC=C(C=C1)\N=N\C1=CC=C(C=C1)\N=N\C1=CC=C(\C=C\C2=CC=C(C=C2S([O-])(=O)=O)\N=N\C2=CC=C(C=C2)\N=N\C2=CC=C(C=C2)S([O-])(=O)=O)C(=C1)S([O-])(=O)=O.[O-]S(=O)(=O)C1=CC=C(C=C1)\N=N\C1=CC=C(C=C1)\N=N\C1=CC(=C(\C=C\C2=CC=C(C=C2S([O-])(=O)=O)\N=N\C2=CC(=C(\C=C\C3=C(C=C(C=C3)\N=N\C3=CC=C(C=C3)\N=N\C3=CC=C(C=C3)S([O-])(=O)=O)S([O-])(=O)=O)C=C2)S([O-])(=O)=O)C=C1)S([O-])(=O)=O
InChl:
not relevant
Structural formula:
Chemical structure

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