丙二膦酸, Propylenediphosphonic acid

4-正丙基乙炔, 4-n-Propylphenylacetylene

(1-丙基)三苯基溴化磷鎓, (1-Propyl)triphenylphosphonium bromide

吡嗪, Pyrazine

1H-吡唑-4-硼酸频哪醇酯, 1H-Pyrazole-4-boronic acid pinacol ester

芘, Pyrene

4-吡啶乙酰胺, 4-Pyridineacetamide

吡啶-4-甲醛, Pyridine-4-carboxaldehyde

吡啶-2,3-二甲酸酐, Pyridine-2,3-dicarboxylic anhydride

重铬酸吡啶鎓, Pyridinium Dichromate