1-芘甲醛, 1-Pyrenecarboxaldehyde

4-Pyridineacetonitrile

吡啶-2-甲酰胺, Pyridine-2-carboxamide

吡啶-2-甲醇, 2-Pyridinemethanol

吡啶三氟甲烷磺酸盐, Pyridinium Trifluoromethanesulfonate

4-(2-吡啶偶氮)间苯二酚, 4-(2-Pyridylazo)resorcinol

4-(2-吡啶)-2-甲基-3-丁基-2-醇, 4-(2-Pyridyl)-2-methyl-3-butyn-2-ol

5-(4-吡啶基)-1H-四唑, 5-(4-Pyridyl)-1H-tetrazole

嘧啶-2-硫代甲酰胺, Pyrimidine-2-thiocarboxamide

吡咯-2-甲醛, Pyrrole-2-carboxaldehyde