carmine

Cases of cubana salmonellosis in three other states were traced to carmine red, and supplies were called in. […] But authorities have been checking other places for carmine red, knowing that it is a favorite coloring in candy, chewing gum, ice cream, cough syrups and drugs. Manufacturers like to use it because of a legal quirk: being a natural rather than a synthetic product, it does not have to be mentioned on labels.

He wore a great coat in midsummer, being affected with the trembling delirium, and his face was the color of carmine.