Allura Red AC is an organic compound classified as an azo compound and a disulfonate. Also known as FD&C Red 40 or E129, it is a red dye commonly used in food. It is usually supplied as its red sodium salt but can also be used as the calcium and potassium salts.
The compounds of every Wikipedia article carrying a Chembox or a Drugbox, refreshed daily, with the values their infoboxes give. The pages need JavaScript; the API does not.