B3 nicotinamide is also known as: vitamin B3, vitamin PP, 3-pyridinamide, Nikkenam. When synthesizing b3 nicotinamide, the "β-methylpyridine" is first oxidized into "niacin", and then chemically reacts with ammonia water to form "ammonium β-pyridine", and finally heat dehydration, forming b3 nicotinamide.