Piperidine (Azinane after the Hantzsch–Widman nomenclature) is an organic compound with the molecular formula (CH2)5NH. This heterocyclic amine consists of a six-membered ring containing five methylene bridges (-{chem|CH|2}-) and one amine bridge (-NH-). It is a colorless fuming liquid with an odor described as ammoniacal, pepper-like, or semen-...
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http://en.wikipedia.org/wiki/Piperidine
• (n.) An oily liquid alkaloid, C5H11N, having a hot, peppery, ammoniacal odor. It is related to pyridine, and is obtained by the decomposition of piperine.
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http://thinkexist.com/dictionary/meaning/piperidine/
Pi·per'i·dine noun (Chemistry) An oily liquid alkaloid, C
5 H
11 N, having a hot, peppery, ammoniacal odor. It is related to pyridine, and is obtained by the decomposition of piperine.
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http://www.encyclo.co.uk/webster/P/93
Type: Term Pronunciation: pī-per′i-dēn Definitions: 1. a compound from which are derived phenothiazine antipsychotics such as thioridazine hydrochloride and mesoridazine besylate. 2. One of a class of alkaloids containing a piperidine (1) moiety.
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http://www.medilexicon.com/medicaldictionary.php?t=69061
Piperidine is a secondary amine, occurring in combination with piperic acid in pepper.
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http://www.probertencyclopaedia.com/browse/GP.HTM
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