Azodicarbonamide, or azo(bis)formamide, is a chemical compound with the molecular formula C2H4O2N4.It is a yellow to orange red, odorless, crystalline powder.
As a food additive it is known as E927 and used as a bleaching agent in packaged, processed foods like frozen dinners, pasta and flour mixes in baked goods
The principal use of azodicarbonamide is in the production of foamed plastics as a blowing agent.
The United States and Canada permit the use of azodicarbonamide at levels up to 45 ppm. In Australia and Europe the use of azodicarbonamide as a food additive is banned.In South Korea, its use is allowed to the same amount as US and Canada but all flour manufacturers have voluntarily agreed to strictly ban the use of not just Azodicarbonamide but any bleaching agent since 1992