SEARCH Articles Figures Tables Analysis of nicotinic acid Establishment of the Relation between Tryptophan and Nicotinic Acid Further Metabolism of Nicotinic Acid Liquid-Phase Oxidation of Nicotine with Permanganate, Chromic Acid, etc Nicotine nicotinic acid Nicotinic acid Phosgene in conversion of nicotinic acid to the Survey of Reactions in Nicotinic Acid and Its Derivatives Synthesis of Nicotinic Acid The Bacterial Synthesis of Nicotinic Acid in Animals