Nicotinamide-d4 (Major) Synonym: 3-Pyridinecarboxamide-d4 3-(Aminocarbonyl)pyridine-d4 3-Amidopyridine-d4 3-Carbamoylpyridine-d4 3- Pyridinecarboxylic acid amide-d4 Aminicotin-d4 Benicot-d4 Nicosylamide-d4 Nicotilamide-d4 Nicotinic Acid Amid 1 * 10 mg