Registration Dossier
Registration Dossier
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EC number: 233-418-9 | CAS number: 10149-98-1
Reference substances
- IUPAC name:
- Trisodium 5-hydroxy-1-(4-sulphophenyl)-4-(4-sulphophenylazo)pyrazole-3-carboxylate
Inventory
- EC number:
- 217-699-5
- EC name:
- Trisodium 5-hydroxy-1-(4-sulphophenyl)-4-(4-sulphophenylazo)pyrazole-3-carboxylate
- CAS number:
- 1934-21-0
- CAS number:
- 1934-21-0
Synonyms
- Names:
- Identifier:
- IUPAC name
- C. I. Acid Yellow 23
- Identifier:
- IUPAC name
- trisodium 5-hydroxy-1-(4-sulphophenyl)-4-(4-sulphophenylazo)pyrazole-3-carboxylate
- Identifier:
- Colour Index
- C.I. 19140
- Identifier:
- common name
- Tartrazine
- Identifier:
- other: Molecular formula
- C16-H12-N4-O9-S2.3Na
Molecular and structural information
- Molecular formula:
- C16H12N4O9S2.3Na
- Molecular weight:
- 534.368
- SMILES notation:
- n1(c2ccc(cc2)S(=O)(=O)[O-])c(c(c(n1)C(=O)[O-])/N=N/c1ccc(cc1)S(=O)(=O)[O-])O.[Na+].[Na+].[Na+]
- InChl:
- 1S/C16H12N4O9S2.3Na/c21-15-13(18-17-9-1-5-11(6-2-9)30(24,25)26)14(16(22)23)19-20(15)10-3-7-12(8-4-10)31(27,28)29;;;/h1-8,13H,(H,22,23)(H,24,25,26)(H,27,28,29);;;/q;3*+1/p-3/b18-17+;;;
- Structural formula:
Related substances
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