Tags: Chemical Compound, Chemical Substance.

Quinoline yellow Quinoline Yellow WS C.I. 47005 or Food Yellow 13 is a yellow food dye with a maximum absorption wavelength of 416 nm.p. 119 Chemically it is a mixture of disulfonates (principally) monosulfonates and trisulfonates of 2-(2-quinolyl) indan-13-dione.The color Quinoline Yellow SS (Spirit Soluble) which lacks the sulfonate groups is a related form that is insoluble in water.

Quinoline_Yellow_WS.svg
IUPAC name
Sodium 2-(13-dioxoindan-2-yl)quinolinedisulfonate

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