Quinoline Yellow
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Country Of Origin : India
Quinoline Yellow WS is a mixture of organic compounds derived from the dye Quinoline Yellow SS. Owing to the presence of sulfonate groups, the WS dyes are water-soluble. It is a mixture of disulfonates, monosulfonates and trisulfonates of 2-indan-1,3-dione with a maximum absorption wavelength of 416 nm.p. 119