2,3-哌嗪二羧酸, Pyrazine-2,3-dicarboxylic acid

1H-吡唑-1-甲脒 盐酸盐, 1H-Pyrazole-1-carboxamidine hydrochloride

4-(1H-吡唑-1-基)苯甲酸, 4-(1H-Pyrazol-1-yl)benzoic Acid

哒嗪, Pyridazine

4-吡啶乙酰胺, 4-Pyridineacetamide

吡啶-4-硼酸盐酸盐, Pyridine-4-boronic acid hydrochloride

吡啶-2-甲酰胺, Pyridine-2-carboxamide

吡啶-3,5-二羧酸, Pyridine-3,5-dicarboxylic acid

N-氧化吡啶, Pyridine N-Oxide

对甲苯磺酸吡啶鎓, Pyridinium p-Toluenesulfonate