Finding and Verifying CAS Registry Numbers^® on STN^®
— March 1993 —

Table of Contents

• Preface
• Introduction
• What Does Going Online Mean?
• Accessing STN International
• CAS Registry Numbers
• The Registry File
  • Indexes in the REGISTRY File
  • Registry Number Index
  • Chemical Name Index
  • Molecular Formula Index
  • Structures
  • Basic Index
  • Sample Record
• Entering Commands
  • Practicing on the LREGISTRY File
• The Basic Messenger Commands
  • FILE Command
• Searching With a Name
  • Overview
  • Details on Searching with a Name
    • Step 1 — Prepare the Name
    • Step 2 — Log on to STN
    • Step 3 — Use the FILE Command
    • Step 4 — EXPAND the Name in the /CN Index
    • Step 5 — SEARCH the Name
    • Step 6 — DISPLAY the Answer(s)
    • Step 7 — Verify the Answer(s)
• Sample Cost of Name Searching
• Searching with a Registry Number
  • Step 1 — Prepare the Number
  • Step 2 — Log on to STN
  • Step 3 — Use the FILE Command
  • Step 4 — DISPLAY the Registry Number Record
  • Step 5 — Verify the Answer
• Sample Cost of Registry Searching
• Details on Verifying the Answer
• Conclusion
• Appendix 1 — Logon Procedures
  • Direct Dial Procedures
• Appendix 2 — Logging Off
• Appendix 3 — Additional Messenger Commands
• Appendix 4 — Contacting STN
  • STN Operating Hours
• Appendix 5 — Additional Support
• Appendix 6 — Costs of Searching Online
• Appendix 7 — Further Training Available
• Appendix 8 — Printed Sources of Names and Registry Numbers
• Appendix 9 — Display Fields
• Appendix 10 — Greek Letters

STN International
c/o Chemical Abstracts Service
2540 Olentangy River Road
P.O. Box 3012
Columbus, OH 43210-0012
Telephone: 614-447-3731
800-753-4CAS (800-753-4227)
Fax: 614-447-3798

Quoting or copying material from this publication for educational purposes is encouraged, providing acknowledgement is made of the source of such material.

© 1993 Education Committee, Division of Chemical Information, American Chemical Society