Substance and Sequence Searching on STN

• Search and Display Substance Information (PDF)

• Searching Ring Systems in CAS REGISTRYSM (PDF)

• Current Awareness Alerts (SDIs) User Guide (PDF)

Structure Searching

• • CAS REGISTRY: Finding CAS Registry Numbers (PDF)

  • CAS REGISTRY: Stereoisomer Searching (PDF)

  • Searching Coordination Compounds (PDF)

  • CASLINK for One-Step Structure Searching in CAS REGISTRY, MARPAT®, and CAplus (PDF)

  • A Guide to Adding Screens in STN Structure Searching (PDF)

  • STN Screen Dictionary for Structure Searching (PDF)

Sequence Searching

• CAS REGISTRY: Exact and Pattern Searching of Protein Sequences (PDF)

• CAS REGISTRY: Exact and Pattern Searching of Nucleic Acid Sequences (PDF)

• Motif Sequence Searching (PDF)

• Blocking Groups and Annotations for Sequences (PDF)

Searching for Property Data

• Tagged Experimental Properties in REGISTRY (PDF)

• Definitions of Properties with Searchable Data in REGISTRY (PDF)

• Property Search Fields in CAS REGISTRY (PDF)

• STN Units System

Searching for Polymers

• Polymer Information on STN (PDF)

• Searching for Polymer Information on STN (PDF)

• Polymer Class Terms in REGISTRY (PDF)

• Polymer Searching Tips and Examples

• Selection of Polymer Index Names for CASM (PDF)