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

反-3-(4-吡啶基)烯丙酸, trans-3-(4-Pyridyl)acrylic acid

4-(2-吡啶基)苯甲醛, 4-(2-Pyridyl)benzaldehyde

1-(3-吡啶)乙胺, 1-(3-Pyridyl)ethylamine

2-(3-吡啶基)丙酸, 3-(2-Pyridyl)propionic acid

2-(4-吡啶基)噻唑-4-羧酸, 2-(4-Pyridyl)thiazole-4-carboxylic acid

嘧啶-2-羧酸, Pyrimidine-2-carboxylic Acid

黄铁矿, Pyrite

吡咯-2-甲醛, Pyrrole-2-carboxaldehyde

(+/-)-2-吡咯烷酮-5-甲酸, (±)-2-Pyrrolidinone-5-carboxylic acid

2-(1-吡咯烷基)苯酚, 2-(1-Pyrrolidinyl)phenol

1-(2-羰基苯)吡咯, 2-(1-Pyrrolyl)benzoic acid

喹哪啶酸, Quinaldic Acid