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|Section2= |Section7= |Section8= }} 2-Undecanone, also known as methyl nonyl ketone and IBI-246, is an oily organic liquid manufactured synthetically, but which can also be extracted from oil of rue. It is found naturally in bananas, cloves, ginger, guava, strawberries, wild-grown tomatoes, and the perennial ''Houttuynia cordata''. ==Uses== 2-Undecanone is used in the perfumery and flavoring industries, but because of its strong odor it is primarily used as an insect repellent or animal repellent. Typically, 1–2% concentrations of 2-undecanone are found in dog and cat repellents in the form of a liquid, aerosol spray, or gel. Research from North Carolina State University has shown that it may be useful as a mosquito repellent, as effective as, or even more effective than, DEET.〔(Mosquitoes Repelled By Tomato-Based Substance; Safer, More Effective Than DEET ), ''Science Daily'', June 2002〕 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「2-Undecanone」の詳細全文を読む スポンサード リンク
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