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Currently viewing:
IUPAC name:
Disodium 3-[(2,4-dimethyl-5-sulphonatophenyl)azo]-4-hydroxynaphthalene-1-sulphonate

Inventory

EC number:
224-909-9
EC name:
Disodium 3-[(2,4-dimethyl-5-sulphonatophenyl)azo]-4-hydroxynaphthalene-1-sulphonate
CAS number:
4548-53-2
CAS number:
4548-53-2
Synonyms
Names:
Identifier:
IUPAC name
disodium 3-[(2,4-dimethyl-5-sulfonatophenyl)diazenyl]-4-hydroxynaphthalene-1-sulfonate
Identifier:
Colour Index
C.I 14700
Identifier:
common name
FD&C Red No. 4
Identifier:
common name
Ponceau SX
Identifier:
other: InChl
InChI=1/C18H16N2O7S2.2Na/c1-10-7-11(2)16(28(22,23)24)8-14(10)19-20-15-9-17(29(25,26)27)12-5-3-4-6-13(12)18(15)21;;/h3-9,21H,1-2H3,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2
Identifier:
other: SMILES notation
[Na+].[Na+].[O-]S(=O)(=O)c3cc(N=Nc2cc(c1ccccc1c2O)S([O-])(=O)=O)c(C)cc3C

Molecular and structural information

Molecular formula:
C18H16N2O7S2.2Na
Molecular weight:
480.428
SMILES notation:
[Na+].[Na+].Cc1cc(C)c(cc1N=Nc2cc(c3ccccc3c2O)S(=O)(=O)[O-])S(=O)(=O)[O-]
InChl:
1S/C18H16N2O7S2.2Na/c1-10-7-11(2)16(28(22,23)24)8-14(10)19-20-15-9-17(29(25,26)27)12-5-3-4-6-13(12)18(15)21;;/h3-9,21H,1-2H3,(H,22,23,24)(H,25,26,27);;/q;2*+1/p-2/b20-19+;;
Structural formula:
Chemical structure

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