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Finding Preparations on STN When You Know the MF of the Product

  1. Arrange the molecular formula in Hill System order:
  2. Connect to STN.
  3. Locate the CAS RN for the product in the REGISTRY file:
=> FILE REGISTRY Enter the REGISTRY FILE
=> E C8H6CL5NO2/MF
E1 11 C8H6CL5NO/MF
E2 1 C8H6CL5NO.CLH/MF
E3 5 C8H6CL5NO2/MF
EXPAND to verify the molecular formula is in the Molecular Formula (MF) index
=> S E3
L1 5 C8H6CL5NO2/MF
Search E-number corresponding to the MF of interest
=> D SCAN Scan answers at no charge; if more than one answer, find unique name segment
=> S L1 AND PYRIDINE
L2 1 L1 AND PYRIDINE
Isolate answer of interest by combining the original answer set with name segment
=> D L2 1 IDE (Optional) Display answer in IDE format to see more detail
  1. Locate references citing preparations in the CAplus file:
=> FILE CAplus Enter the CAplus FILE
=> S L2/P
L3 1 L2/P
Locate references citing preparations
=> D SCAN Scan answers at no charge
=> D L3 1 BIB ABS (Optional) Display answers in more detail:

BIB Bibliographic information
CBIB Bibliographic information in condensed form
ABS Abstract
IND CAS indexing
ALL BIB + ABS + IND

Reproduced with the permission of CAS, a Division of the American Chemical Society, from "Tips for Searching the CAplus & REGISTRY Files." (CAS9613-0298)