Sun Drop, also marketed as Sundrop, is a citrus-flavored soda produced by Dr Pepper Snapple Group. It has a yellowish-green color imparted by Yellow 5. Among soft drinks, it is known for its high caffeine content (63 mg per 12 oz can, 9 mg higher than a 12 oz can of Mountain Dew, but not as much as Vault with 70.5 mg per 12 oz can). Orange juice is an ingredient in the drink, and remaining pulp matter from the orange juice provides some of the soft drink's taste and appearance.