Quinoline Yellow WS

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ImageFile = Quinoline Yellow WS.png ImageSize =
IUPACName = Sodium 2-(1,3-dioxoindan-2-yl)quinolinedisulfonate
OtherNames = Food Yellow 13, Acid yellow 3, Quinidine Yellow KT, Japan Yellow 203, Lemon Yellow ZN 3, C.I. 47005
Section1 = Chembox Identifiers
CASNo = 8004-92-0
PubChem = 24671
SMILES =
EINECS = 305-897-5
Section2 = Chembox Properties
Formula = C₁₈H₁₃N₁O_5/8/11S_1/2/3Na_1/2/3
MolarMass = 477.38 g/mol
Appearance = Greenish yellow powder
Density =
MeltingPt = 150°C (decomp.)
BoilingPt =
Solubility = 4 g/100 ml
Section3 = Chembox Hazards
MainHazards = Harmful (Xn)
RPhrases = R22
FlashPt = S24/25, S28A, S37, S45
Autoignition =

Quinoline yellow, Quinoline Yellow WS, C.I. 47005, or Food Yellow 13, is a yellow food dye. Chemically it is a mixture of disulfonates (principally), monosulfonates and trisulfonates of 2-(2-quinolyl) indan-1,3-dione. It is also listed under CAS number CASREF|CAS=80583-08-0.

Quinoline Yellow SS (Spirit Soluble) is its form insoluble in water. It lacks the sulfonate group.

Uses

It is more commonly known as E104 in terms of E numbers. It is a food colorant that induces a dull yellow, or greenish yellow colour. It can be found in ices, cough sweets, scotch eggs and smoked haddock. It is one of the colors that the Hyperactive Children's Support Group recommends be eliminated from the diet of children. It may cause contact dermatitis. While being a commonly used color in the UK, its use is banned in Japan and the United States. It was banned in Australia but its use has been permitted since 2003.

It is used as a pigment for tattoos.

Health effects

A study commissioned by the UK's Food Standards Agency found that when used in a mixture of other preservatives, increased levels of hyperactivity and decreased levels of intelligence in children were observed. [http://www.myomancy.com/2007/09/food-colorings-and-hyperactivity] "Myomancy" 7th September 2007] [ [http://www.telegraph.co.uk/news/main.jhtml?xml=/news/2008/04/07/nfood107.xml Graham Tibbetts. "Artificial colourings as harmful as leaded petrol for children", "Telegraph", 7 April 2008] ]

References

External links

* [http://www.chemicalland21.com/specialtychem/finechem/QUINOLINE%20YELLOW%20WS.htm Entry at chemicalland21.com]
* [http://www.freepatentsonline.com/4398916.html Process for purification of quinoline yellow]