Read Edit View history 哌啶 pàidìng piperidine Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 哌啶 · pàidìng · piperidine 2026/03/04 哌啶 pàidìng piperidine piperidine (chemistry) 哌啶是一种常用的有机合成中间体。 noun created sense Mar 4, 2026, 02:25 AM