has role is protonated form of nicotinic acid 3-carboxypyridine m-pyridinecarboxylic acid nicotinic acid Nicotinic acid anti-pellagra vitamin NICOTINIC ACID CHEBI:44319 3-Pyridylcarboxylic acid acide nicotinique beta-pyridinecarboxylic acid 3-pyridinecarboxylic acid acido nicotinico pellagra preventive factor vitamin B3 Nicotinsaure Nicotinic acid NICOTINIC ACID CHEBI:25538 A pyridinemonocarboxylic acid that is pyridine in which the hydrogen at position 3 is replaced by a carboxy group. pyridine-carboxylique-3 pyridine-3-carboxylic acid nicotinic acid pyridine-3-carboxylic acid Niacin CHEBI:7559 P.P. factor Niaspan acidum nicotinicum Nikotinsaeure Niacor 3-carboxylpyridine PP factor pyridine-beta-carboxylic acid vitamin B3 pyridine alkaloid pyridinemonocarboxylic acid nicotinate vasodilator agent antilipemic drug antidote mouse metabolite plant metabolite Escherichia coli metabolite human urinary metabolite EC 3.5.1.19 (nicotinamidase) inhibitor