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並前往https://www.reach.lu/fileadmin/files/documents/newsletter/Thematic_NL/Thematic-newsletter-substance-numbers-databases-EN-1.0.pdf

Legal status of substance numbers: EC numbers vs “list ...

numbers “, to substances for which no previous EC entry is given by the ... the EC inventory, e.g. no EC number submitted, ... can search with either the.

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