Quinoline Yellow WS E104 water soluble food color coloring powder - 250 grams Quinoline Yellow WS is a mixture of organic compounds derived from the dye Quinoline Yellow SS (Spirit Soluble). Owing to the presence of sulfonate groups, the WS dyes are water-soluble (WS). It is a mixture of disulfonates (principally), monosulfonates and trisulfonates of 2-(2-quinolyl)indan-1,3-dione with a maximum absorption wavelength of 416 nm. Uses Quinoline Yellow is used as a greenish yellow food additive designated in Europe as the E number E104.
