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Yellow 2G



Yellow 2G
Identifiers
CAS number 6359-98-4
SMILES O=C1C(/N=N/c3ccc(S(=O)([O-])=O)cc3) C(C)=NN1c2c(Cl)cc(S(=O) ([O-])=O)c(Cl)c2
Properties
Molecular formula C16H12Cl2N4O7S2 (free acid)
Molar mass 507.325 g/mol (free acid)
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

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.

Additional recommended knowledge

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.

 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Yellow_2G". A list of authors is available in Wikipedia.
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