2, 3,7, 8-位塩素置換異性体
English translation: 2,3,7,8-TCDD / 2,3,7,8-TeCDD
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| 04:27 Jul 21, 2006 |
| Japanese to English translations [PRO] Science - Chemistry; Chem Sci/Eng | |||||||
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|  Selected response from: Chandrasekaran Rangaraj India Local time: 14:25 | ||||||
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| 4 | 2,3,7,8-TCDD / 2,3,7,8-TeCDD |
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| 1 | Definition - not for grading |
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Answers
37 mins confidence: 
2,3,7,8-TCDD / 2,3,7,8-TeCDD Explanation: 2,3,7,8-TETRACHLORODIBENZO-P-DIOXIN ; DIOXIN (2,3,7,8-TCDD). The following information resources are not maintained by Envirofacts. ... www.epa.gov/enviro/html/emci/chemref/1746016.html 2,3,7,8-TeCDD http://www.env.go.jp/chemi/dioxin/hand/hb_002.pdf 特に、PCDDとPCDFでは、2・3・7・8位が塩素で置換した異性体の毒性が高いことが知られていて、中でも2,3,7,8-四塩化ジオキシン（2,3,7,8-Tetra Chloro Dibenzo-para-Dioxin：2,3,7,8-TCDD）はもっとも毒性が強く、史上最強の毒性を持つといわれる。 http://www.eic.or.jp/library/prof_h/h030403_3.html |
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1 hr confidence:
Definition - not for grading Explanation: Unfortunately, I can't help with the English, but the following definition may help you, or help to validate someone else's answer. ２．用語 の定義 本マニュアル中で記載する用語の定義を，次のように定める。 <snip> 2.2 ダイオキシン類 2,3,7,8−位塩素置換異性体 ダイオキシン類のうち，化学構造上 2,3,7 及び 8 で表記される位置全てに塩素が配位している化合物の総称。クロロジベンゾ−パラ−ジオキシンで 7 化合物，クロロジベンゾフランで 10 化合物，合計 17 化合物が存在する。 From http://72.14.235.104/search?q=cache:Xd6mU7a6W9UJ:uta.jemca.o... (Scroll down to p. 10) HTH a little :-) |
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