Registration Dossier

Data platform availability banner - registered substances factsheets

Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Reference substances

Reference substances

Currently viewing:
IUPAC name:
NA

Inventory

EC number:
228-940-9
EC name:
Disodium 4,4'-bis(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-ylazo)-1,1'-biphenyl-2,6'-disulphonate
CAS number:
6375-55-9
CAS number:
6375-55-9
Synonyms
Names:
Identifier:
IUPAC name
Disodium 4,4'-bis(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-ylazo)-1,1'-biphenyl-2,6'-disulphonate
Identifier:
IUPAC name
[1,1'-Biphenyl]-2,2'-disulfonic acid, 4,4'-bis[2-(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)diazenyl]-, sodium salt (1:2)
Identifier:
IUPAC name
disodium 5-[(E)-2-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazen-1-yl]-2-{4-[(E)-2-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazen-1-yl]-2-sulfonatophenyl}benzene-1-sulfonate
Identifier:
other: Molecular formula
C32H26N8O8S2.2Na
Identifier:
other: InChl
InChI=1S/C32H26N8O8S2.2Na/c1-19-29(31(41)39(37-19)23-9-5-3-6-10-23)35-33-21-13-15-25(27(17-21)49(43,44)45)26-16-14-22(18-28(26)50(46,47)48)34-36-30-20(2)38-40(32(30)42)24-11-7-4-8-12-24;;/h3-18,41-42H,1-2H3,(H,43,44,45)(H,46,47,48);;/q;2*+1/p-2/b35-33+,36-34+;;
Identifier:
other: SMILES notation
[Na+].[Na+].CC1=NN(C2C=CC=CC=2)C(=O)C1N=NC1=CC(=C(C=C1)C1=CC=C(C=C1S([O-])(=O)=O)N=NC1C(=O)N(N=C1C)C1C=CC=CC=1)S([O-])(=O)=O
sodium 4,4'-bis((E)-(5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)diazenyl)biphenyl-2,2'-disulfonate

Molecular and structural information

Molecular formula:
C32H24N8Na2O8S2
Molecular weight:
ca. 758.69
SMILES notation:
Oc5n(nc(C)c5/N=N/c1ccc(c(c1)S(=O)(=O)O[Na])c2ccc(cc2S(=O)(=O)O[Na])/N=N/c3c(O)n(nc3C)c4ccccc4)c6ccccc6
InChl:
InChI=1/C32H26N8O8S2.2Na/c1-19-29(31(41)39(37-19)23-9-5-3-6-10-23)35-33-21-13-15-25(27(17-21)49(43,44)45)26-16-14-22(18-28(26)50(46,47)48)34-36-30-20(2)38-40(32(30)42)24-11-7-4-8-12-24;;/h3-18,41-42H,1-2H3,(H,43,44,45)(H,46,47,48);;/q;2*+1/p-2/b35-33+,36-34+;;
Structural formula:
Chemical structure

Related substances