Yellow 2G
From Wikipedia, the free encyclopedia
| Yellow 2G | |
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| IUPAC name | Disodium 2,5-dichloro-4-[3-methyl-5-oxo-4-(4-sulfonatophenyl)diazenyl-4H-pyrazol-1-yl]benzenesulfonate |
| Identifiers | |
| CAS number | [6359-98-4] |
| PubChem | |
| SMILES | CC1=NN(C(=O)C1N=NC2=CC=C(C=C2)S(=O)(=O)[O-])C3=CC(=C(C=C3Cl)S(=O)(=O)[O-])Cl.[Na+].[Na+] |
| Properties | |
| Molecular formula | C16H10Cl2Na2N4O7S2 |
| Molar mass | 551.29 g/mol |
| Hazards | |
| S-phrases | S24 S25 S28A S37 S45 |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Yellow 2G, also known as C.I. Acid Yellow 17, Lissamine Fast Yellow, and C.I. 18965, is a colourant in food denoted by E number E107. It has the appearance of a yellow powder, soluble in water. It is a synthetic coal tar and yellow azo dye.
It appears to cause allergic or anal rash reactions, particularly amongst those with an aspirin intolerance and asthma sufferers. It is one of the colours that the Hyperactive Children's Support Group recommends be eliminated from the diet of children.
Currently only the UK in the European Union uses this dye and the EU is proposing a total ban. Its use is banned in Austria, Japan, Norway, Sweden, Switzerland and the United States.
