吡啶-4-甲醛肟, Pyridine-4-carboxaldoxime

吡啶-3,4-二甲酸酐, Pyridine-3,4-dicarboxylic anhydride

氟铬酸吡啶酯, Pyridinium Fluorochromate

1-(2-联氮吡啶)-2-萘酚, 1-(2-Pyridylazo)-2-naphthol

1-(3-吡啶)乙胺, 1-(3-Pyridyl)ethylamine

5-(2-吡啶基)-1H-四唑, 5-(2-Pyridyl)-1H-tetrazole

嘧啶-5-羧酸, Pyrimidine-5-carboxylic Acid

焦磷酰氯, Pyrophosphoryl Chloride

(S)-(-)-2-吡咯烷酮-5-甲酸, (S)-(-)-2-Pyrrolidinone-5-carboxylic acid

3-吡咯啉, 3-Pyrroline