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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:
disodium 4-[(1E)-2-{2,4-dihydroxy-5-[(1E)-2-(2-hydroxy-3,5-dinitrophenyl)diazen-1-yl]-3-[(1E)-2-(4-nitrophenyl)diazen-1-yl]phenyl}diazen-1-yl]-5-hydroxynaphthalene-2,7-disulfonate

Inventory

EC number:
232-380-0
EC name:
2,7-naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 2-amino-4,6-dinitrophenol, diazotized 4-nitrobenzenamine and resorcinol, sodium salts
CAS number:
8011-86-7
Description:
This substance is identified in the Colour Index by Colour Index Constitution Number, C.I. 34905.
CAS number:
8011-86-7
Synonyms
Names:
Identifier:
IUPAC name
disodium 4-[(E)-2-{2,4-dihydroxy-5-[(E)-2-(2-hydroxy-3,5-dinitrophenyl)diazen-1-yl]-3-[(E)-2-(4-nitrophenyl)diazen-1-yl]phenyl}diazen-1-yl]-5-hydroxynaphthalene-2,7-disulfonate
Identifier:
IUPAC name
2,7-Naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 2-amino-4,6-dinitrophenol, diazotized 4-nitrobenzenamine and resorcinol, sodium salts
Identifier:
IUPAC name
2,7-naphthalenedisulfonic acid, 4-amino-5-hydroxy-, diazotized, coupled with diazotized 2-amino-4,6-dinitrophenol, diazotized 4-nitrobenzenamine and resorcinol, sodium salts
Identifier:
IUPAC name
Reaction products of diazotised 2,7-naphthalenedisulfonic-4-amino-5-hydroxy acid, diazotised 2-amino-4,6-dinitrophenol, diazotised 4-nitrobenzenamine and resorcinol, sodium salts
Identifier:
other: Molecular formula
C10H9NO7S2 . C6H6O2 . C6H5N3O5 . C6H6N2O2 . Na
Identifier:
other: Molecular formula
Not applicable UVCB substance
Identifier:
other: Molecular formula
Not applicable for UVCB substance
Identifier:
other: SMILES notation
[Na+].[Na+].[O-][N+](=O)c5cc(/N=N/c4cc(/N=N/c2cc(cc1cc(cc(O)c12)S([O-])(=O)=O)S([O-])(=O)=O)c(O)c(/N=N/c3ccc(cc3)[N+]([O-])=O)c4O)c(O)c(c5)[N+]([O-])=O
reaction products of diazotised 4-amino-5-hydroxynaphthalene disulfonic acid coupled with 1,3-benzendiol, , subsequently coupled with diazotised 2-amino-4,6-dinitrophenol, subsequently coupled with diazotised 4-nitrobenzenamine, sodium salts

Molecular and structural information

Molecular formula:
C28H15N9Na2O16S2
Molecular weight:
843.6
SMILES notation:
[Na+].[Na+].OC1=CC(=CC2=CC(=CC(\N=N\C3=CC(\N=N\C4=CC(=CC(=C4O)[N+]([O-])=O)[N+]([O-])=O)=C(O)C(\N=N\C4=CC=C(C=C4)[N+]([O-])=O)=C3O)=C12)S([O-])(=O)=O)S([O-])(=O)=O
InChl:
InChI=1/C28H17N9O16S2.2Na/c38-23-10-17(55(51,52)53)6-12-5-16(54(48,49)50)9-18(24(12)23)30-32-20-11-21(33-31-19-7-15(36(44)45)8-22(26(19)39)37(46)47)28(41)25(27(20)40)34-29-13-1-3-14(4-2-13)35(42)43;;/h1-11,38-41H,(H,48,49,50)(H,51,52,53);;/q;2*+1/p-2/b32-30+,33-31+,34-29+;;
Structural formula:
Chemical structure

Related substances

open allclose all
Identifier:
CAS number
Identity:
6637-87-2
Identifier:
EC number
Identity:
229-637-4
Identity:
disodium 4-[[2,4-dihydroxy-5-[(2-hydroxy-3,5-dinitrophenyl)azo]-3-[(4-nitrophenyl)azo]phenyl]azo]-5-hydroxynaphthalene-2,7-disulphonate