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安裝中文字典英文字典辭典工具!
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Access the world’s most comprehensive chemical substance and reaction data Search by structure, name, CAS Registry Number®, or spectra data Uncover relevant literature, patents, and regulatory information quickly Retrosynthesis requires strong data and powerful tools
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The CAS reference collection aggregates and connects scientific knowledge from thousands of journals and other sources published globally in more than 50 languages dating back to the early 1800s
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