Allura Red..... think chocolate milk.  FD&C Red  Red dye. In orange soda and related to food color scarlet (FD&C #4), tartrazine #5 Orange B.
Yellow #5&#6 are used in candies and drug coatings. Orange B only allowed in hot and sausage casings.

These are known as azo dyes, they have two nitrogen atoms together in the center. Originally derived from coal tar, now mostly petroleum. Azo dyes come in many colors besides the one above allowed in foods. They dye fabrics, paper products, and plastics.