Synthetic dyes are classified on the basis of their solubility and chemical properties into acidic and basic dye and other categories. Acidic dyes are anionic that are water soluble. By utilizing neutral to acid dye baths, acidic dyes are used to dye the fibers like silk, wool, nylon and altered acrylic fibers. These dyes are used for fiber by formation of salt between anionic groups in the dyes and cationic groups in the fiber. Majority of food synthetic color are acidic in nature. While the basic dyes are water-soluble cationic dyes that are also used for the dying acrylic fibers, but its use for wool and silk is limited. In addition, papers are also colored by this category of dye . Synthetic colors (basic color) do not contain groups that form salt as water-soluble colors. Such colors are soluble in oil or organic solvents . Anionic dyes are direct, acid and reactive dyes whereas cationic (basic dyes) are non-ionic and zwitter ionic depending on the ionic charge on the dye molecules. Basic dyes are more toxic as compare to acidic dyes . Synthetic food colors have been lawful and regulated for use in food additives in many countries . Different food colors are used in innumerable kinds of toffees, ice-cream, jam and jellies as well as it is also used in bakery products like biscuits, pastries and cakes. The basic purpose of addition of this food additive is to increase the appeal of various kinds of food stuff in order to catch the attention of customers. Both large manufacturers and street vendors do this activity .