精确识别化学物质
获取全面及准确的化学物质来源，提升您的研究活动。
让 CAS SciFinder 成为您权威可靠的信息来源
您需要最新和最准确的物质和反应信息，以便迅速而自信地为您的关键研究活动提供重要见解。
Search for substances sourced globally
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.
Search using drawn structures or substance name/number
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®.