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Quinoline Yellow WS

Quinoline Yellow WS
IUPAC name Sodium 2-(1,3-dioxoindan-2-yl)quinolinedisulfonate
Other names Food Yellow 13, Acid yellow 3, Quinidine Yellow KT, Japan Yellow 203, Lemon Yellow ZN 3, C.I. 47005
CAS number 8004-92-0
PubChem 24671
EINECS number 305-897-5
Molecular formula C18H13N1O5/8/11S1/2/3Na1/2/3
Molar mass 477.38 g/mol
Appearance Greenish yellow powder
Melting point

150°C (decomp.)

Solubility in water 4 g/100 ml
Main hazards Harmful (Xn)
R-phrases R22
Flash point S24/25, 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

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 [80583-08-0].

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


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. Whilst 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 in children were observed.[1]


  1. ^ [1]"Myomancy" 7th September 2007
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Quinoline_Yellow_WS". A list of authors is available in Wikipedia.
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