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Merck
CN

201952

Sigma-Aldrich

Tartrazine

Dye content 80 %

Synonym(s):

Acid Yellow 23

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About This Item

Empirical Formula (Hill Notation):
C16H9N4Na3O9S2
CAS Number:
Molecular Weight:
534.36
Colour Index Number:
19140
Beilstein:
69850
EC Number:
MDL number:
UNSPSC Code:
12171500
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composition

Dye content, 80%

λmax

425 nm

SMILES string

[Na+].[Na+].[Na+].[O-]C(=O)C1=NN(c2ccc(cc2)S([O-])(=O)=O)C(=O)C1N=Nc3ccc(cc3)S([O-])(=O)=O

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

InChI key

UJMBCXLDXJUMFB-UHFFFAOYSA-K

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