Niacin, also known as nicotinic acid, is an organic compound and a form of vitamin B3, an essential human nutrient.
Niacin, also known as nicotinic acid, is an organic compound and a form of vitamin B3, an essential human nutrient. It has the formula C6H5NO2 and belongs to the group of the pyridinecarboxylic acid.Vitamin B3 is a vitamin that includes three forms: nicotinamide (niacinamide), niacin (nicotinic acid), and nicotinamide riboside. All three forms of vitamin B3 are converted within the body to nicotinamide adenine dinucleotide (NAD).NAD is required for human life and people are unable to make it within their bodies without one of the vitamin B3 or tryptophan. Nicotinamide riboside was identified as a form of vitamin B3 in 2004.The group is also occasionally referred to as vitamin B3 complex