Niacin (CAS NO.59-67-6) feed grade is used as vitamin for poultry, swines, ruminants, fish, dogs and cats, etc. It is also used as intermediate for nicotinic acid derivatives and technical applications. Niacin USP is used for food fortification, as dietary supplement and as an intermediate of pharmaceuticals,as dietary supplement and as an intermediate of pharmaceuticals. It is a brand name for a sustained release Niacin tablet, which is used to reduce cholesterol.