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Welcome to STN!
The new STN platform delivers essential value-added content from CAS and Derwent World Patents Index®, along with global full-text patent information, in an intuitive, powerful interface designed for professional IP searching. Leveraging cutting-edge technology, new STN transforms patent searching by making it possible to explore STN's unique content collection in new ways to quickly find answers and develop unique insight.
Training Opportunities
The new STN search interface is designed to integrate with users' workflow and increase efficiency. Training and support materials are available to help you become familiar with the new STN platform, including:
  • Orientation - Recorded sessions are available to help you become familiar with the new STN platform.
  • In-product Help - Accessible on demand, Help provides search examples and key content details, and is formatted for easy printing.

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        casdraw test
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        Structure is too general. Select limiter(s) below, draw additional atoms and bonds, or lock out rings and chains. Structure is too general. Select limiter(s) below to make search more specific.