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• Commands and Features
• Chemical Literature and Patents (CA/CAplus)
• Substances: General (REGISTRY)
• Structures (REGISTRY)
• Sequences (REGISTRY)
• Polymers (REGISTRY)
• Markush Structures (MARPAT)
• Reactions (CASREACT)
• Patent Information
• Property Data
• Citations
• New to STN?

Quick Reference Cards and Guides

• ANALYZE and TABULATE for statistical analysis (PDF) (~144K) 
• Basic STN commands (PDF) (~743K)
• Current-awareness alerts (SMARTracker) in CAS REGISTRY^SM and CAplus^SM (PDF) (~140K)
• Current-awareness alerts (SDIs) in a single database (PDF) (~126K)
• Current-awareness alerts (SDIs) in multiple databases (PDF) (~137K)
• INDEX for evaluating databases and searches (PDF) (~132K)
• Thesauri on STN (PDF) (~139K)
• TRANSFER for crossfile searching (PDF) (~127K)
• STN Pocket Guide (HTML)
• The STN Information Keep & Share Program (PDF)
• STN-Dialog Command Comparison Charts (PDF) (HTML)
• STN-Questel-Orbit Command Comparison Charts (PDF)  

STNotes

• Crossfile Searching with the TRANSFER Command (PDF) (STNote 16; 7/98; reviewed 3/05)
• ANALYZE and TABULATE Commands (PDF) (STNote 17; Revised 5/03)
• The STN Information Keep & Share Program (PDF) (STNote 22; 10/99; reviewed 3/05)

User References

• Database Clusters
• Databases with Simultaneous Left and Right Truncation (SLART)

Training at Your Computer

• Mastering STN Commands