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With CAS SciFinder, you can access the world’s most trusted and authoritative substance resource, CAS REGISTRY®.
Through the efforts of a global network of scientists, CAS aggregates, indexes, and annotates the world’s scientific, scholarly journals, patents, dissertations, and seminal reference works every day to make the information fully discoverable within CAS SciFinder.

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CAS SciFinder is your one true source for authoritatively identifying a chemical substance and its related chemical structures, chemical names, regulatory information, and properties, including the CAS Registry Number®.

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