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|Section2= |Section3= |Section4= }} Putrescine, or tetramethylenediamine, is a foul-smelling organic chemical compound NH2(CH2)4NH2 (1,4-diaminobutane or butanediamine) that is related to cadaverine; both are produced by the breakdown of amino acids in living and dead organisms and both are toxic in large doses. The two compounds are largely responsible for the foul odor of putrefying flesh, but also contribute to the odor of such processes as bad breath and bacterial vaginosis. They are also found in semen and some microalgae, together with related molecules like spermine and spermidine. ==History== Putrescine〔Ludwig Brieger, "Weitere Untersuchungen über Ptomaine" (investigations into ptomaines ) (Berlin, Germany: August Hirschwald, 1885), (page 43 ). From page 43: Ich nenne dasselbe Putrescin, von putresco, faul werden, vermodern, verwesen. (I call this () "putrescine", from (Latin word ) ''putresco'', to become rotten, decay, rot.)〕 and cadaverine〔Ludwig Brieger, "Weitere Untersuchungen über Ptomaine" (investigations into ptomaines ) (Berlin, Germany: August Hirschwald, 1885), (page 39 ).〕 were first described in 1885 by the Berlin physician Ludwig Brieger (1849–1919).〔Brief biography of (Ludwig Brieger ) (in German). Biography of (Ludwig Brieger ) in English.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「putrescine」の詳細全文を読む スポンサード リンク
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