氯铬酸吡啶鎓, Pyridinium Chlorochromate

3-(3-吡啶基)-D-丙氨酸, 3-(3-Pyridyl)-D-alanine

2-(4-吡啶基)苯并咪唑, 2-(4-Pyridyl)benzimidazole

4-(3-吡啶基)丙酸, 3-(4-Pyridyl)propionic acid

嘧啶-5-甲醛, Pyrimidine-5-carboxaldehyde

均苯四甲酸, Pyromellitic Acid

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

6-(1-吡咯烷基)吡啶-3-甲醛, 6-(1-Pyrrolidinyl)pyridine-3-carboxaldehyde

喹哪啶红, Quinaldine Red

喹啉-8-甲醛, Quinoline-8-carboxaldehyde