Biosis BIOSIS Previews workbook Page 53
®
Searching
BIOSIS Previews
Searching for
Specific Subject Topics
CAS Registry Numbers
®
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www.biosis.org s Training & Support s PowerPoint Presentation s BIOSIS Previews s
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CAS Registry Numbers are included in their own field from 1993 forward.
This allows you to search for a chemical or compound using its Registry Number,
which will automatically locate synonym and variant terms.
Enzyme commission numbers are included in this field.
52
Vendor DataStar
Dialog
Ovid
SilverPlatter
STN
Field Tag
.RN. (CAS
Registry Number)
RN= (CAS
Registry Numbers)
.RN. (Registry
Numbers)
RN= or in RN
(CAS Registry
Numbers)
CAS Registry
Numbers
No field tag is
needed
Search
examples
Notes
36791-04-5
S RN=36791-
04-5
36791-04-5
.RN.
36791-04-5 in
RN
S 36791-04-5
Display
examples
36791-04-5:
RIBAVIRIN.
36791-04-5:
RIBAVIRIN
36791-04-5:
RIBAVIRIN.
36791-04-5:
RIBAVIRIN
36791-04-5
(RIBAVIRIN)
Field tag not
required; search
using the
hyphen.
Registry numbers
can be MAPped
into other Dialog
files.
Search using the
hyphen.
Search enzyme
commission
numbers in
quotes
Search using the
hyphen.
Available from
1969 forward.
