CHEBI:9405 - tartrazine

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ChEBI Name tartrazine
ChEBI ID CHEBI:9405
Definition An organic sodium salt which is the trisodium salt of tartrazine acid. A synthetic lemon yellow azo dye used as a food colouring.
Stars This entity has been manually annotated by the ChEBI Team.
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Formulae C16H9N4Na3O9S2
C16H9N4O9S2.3Na
Net Charge 0
Average Mass 534.36300
Monoisotopic Mass 533.95040
InChI InChI=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+;;;
InChIKey UJMBCXLDXJUMFB-GLCFPVLVSA-K
SMILES [Na+].[Na+].[Na+].[O-]C(=O)C1=NN(C(=O)C1\N=N\c1ccc(cc1)S([O-])(=O)=O)c1ccc(cc1)S([O-])(=O)=O
Roles Classification
Biological Role(s): food colouring
A food additive that imparts colour to food. In European countries, E-numbers for permitted food colours are from E 100 to E 199, divided into yellows (E 100-109), oranges (E 110-119), reds (E 120-129), blues and violets (E 130-139), greens (E 140-149), browns and blacks (E 150-159), and others (E 160-199).
Application(s): histological dye
A dye used in microscopic or electron microscopic examination of cells and tissues to give contrast and to highlight particular features of interest, such as nuclei and cytoplasm.
food colouring
A food additive that imparts colour to food. In European countries, E-numbers for permitted food colours are from E 100 to E 199, divided into yellows (E 100-109), oranges (E 110-119), reds (E 120-129), blues and violets (E 130-139), greens (E 140-149), browns and blacks (E 150-159), and others (E 160-199).
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ChEBI Ontology
Outgoing tartrazine (CHEBI:9405) has part tartrazine(3−) (CHEBI:68628)
tartrazine (CHEBI:9405) has role food colouring (CHEBI:77182)
tartrazine (CHEBI:9405) has role histological dye (CHEBI:77178)
tartrazine (CHEBI:9405) is a organic sodium salt (CHEBI:38700)
IUPAC Name
trisodium 5-oxo-1-(4-sulfonatophenyl)-4-[(E)-(4-sulfonatophenyl)diazenyl]-4,5-dihydro-1H-pyrazole-3-carboxylate
Synonyms Sources
4,5-Dihydro-5-oxo-1-(4-sulfophenyl)-4-((4-sulfophenyl)azo)-1H-pyrazole-3-carboxylic acid, trisodium salt ChemIDplus
Acid yellow 23 ChemIDplus
CI 19140 ChemIDplus
E102 ChEBI
FD & C Yellow no. 5 ChemIDplus
Tartrazine KEGG COMPOUND
Manual Xrefs Databases
C07574 KEGG COMPOUND
Tartrazine Wikipedia
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Registry Numbers Types Sources
11325279 Reaxys Registry Number Reaxys
1934-21-0 CAS Registry Number ChemIDplus
906396 Beilstein Registry Number Beilstein
Citations Waiting for Citations Types Sources
17218045 PubMed citation Europe PMC
2239641 PubMed citation Europe PMC
3425858 PubMed citation Europe PMC
6721262 PubMed citation Europe PMC
7258046 PubMed citation Europe PMC
Last Modified
22 February 2017