烟酰胺

ethyl 1-methylpyridin-1-ium-3-carboxylate,iodide

2-(pyridine-3-carbonyloxy)ethyl pyridine-3-carboxylate

烟酸苯酯

2-(1,2,3,6-四氢-1,3-二甲基-2,6-二氧代-7h-嘌呤-7-基)烟酸乙酯