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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク EINECS ： ウィキペディア英語版 European Community number The European Community number (EC Number) is a unique seven-digit identifier that was assigned to substances for regulatory purposes within the European Union by the European Commission. The so-called ''EC Inventory'' comprises three individual inventories, EINECS, ELINCS and the NLP list. == Structure == The EC Number may be written in a general form as: NNN-NNN-R, where R is a check digit and N represents integers. The check digit is calculated using the ISBN method. According to this method, the check digit R is the following sum modulo 11: :$R\; =\; (N\_1\; +\; 2\; N\_2\; +\; 3N\_3\; +\; 4N\_4\; +\; 5N\_5\; +\; 6N\_6)\; \backslash mod\; 11$ If the remainder R is equal to 10, that combination of digits is not used for an EC number. To illustrate, the EC number of dexamethasone is 200-003-9. N1 is 2, N2 through N5 are 0, and N6 is 3. :$\backslash frac\; =\; \backslash frac\; =\; 1\; +\; \backslash frac$ The remainder is 9, which is the check digit. 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「European Community number」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.