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New on STN

January 2020

Changes to Derwent WPI Update numbering and the total number of annual DWPI updates

December 2019

Derwent World Patents Index: Manual Code revision 2020

December 2019

New Korean Patent Full-Text Database KRFULL released

STN User Meetings

Munich, 20.05.2020

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Databases by Clusters

STN database clusters contain databases covering the same subject area. You can search the clusters through the Multifile Search capability. Reviewing the clusters can help you determine which databases to search to find information on your topic of interest:

AEROTECHAGRICULTUREBIOSCIENCEBUSINESSCASRNSCHEMENGCHEMISTRY
COMPUTERCONSTRUCTIONELECTRICALENGINEERINGENVIRONMENTFOODFORMULATIONS
FUELSFULLTEXTGEOSCIENCEHEALTHHPATENTSHUMANITIESMATERIALS
MEDICINEMEETINGSMETALSMOBILITYNPSNUMERICPATENTS
PETROLEUMPHARMACOLOGYPHYSICSPNTTEXTPOLYMERSPVSAFETY
STRUCTURETOXICOLOGY

Others database clusters contain databases that share a similar feature (e.g. CAS Registry Numbers, numeric data, chemical structure searching) or have the same producer. All files in these clusters are also contained in the subject oriented clusters above.

Databases in category "STRUCTURE"

CASREACT   Chemical Abstracts Reactions database 
 Summary Sheet
DDFU / DRUGU   Derwent Drug file from 1983 to date 
 Summary Sheet
DJSMDS / DJSMONLINE   Derwent Journal of Synthetic Methods Online 
 Summary Sheet
MARPAT   The CAS Patent Markush file 
 Summary Sheet
PS   Pharmaceutical Substances 
 Summary Sheet
REAXYSFILE   Handbook of Organic Chemistry 
 Summary Sheet
REGISTRY   The CAS Registry file of Substances 
 Summary Sheet