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Sunset Yellow FCF (also known as Orange Yellow S, or C.I. 15985) is a petroleum-derived orange azo dye with a pH dependent maximum absorption at about 480 nm at pH 1 and 443 nm at pH 13 with a shoulder at 500 nm.:463 When added to foods sold in the US it is known as FD&C Yellow 6; when sold in Europe, it is denoted by E Number E110.Sunset Yellow is used in food, cosmetics, and drugs.:4 For example, it is used in candy, desserts, snacks, sauces, and preserved fruits.:463–465 Sunset Yellow is often used in conjunction with E123, amaranth, to produce a brown colouring in both chocolates and caramel. |