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New on STN

October 2019

Third 2019 update to Emtree(TM) now available on STN(R)

October 2019

New CAS FORMULATIONS TM Database Launched on STNext

April 2019

New legal status codes for US patent applications and granted patents in INPADOC

Meet us at

EPOPIC 2019 - EPO Patent Information Conference, 29.-30. Oct, Bukarest
IP-Service World, 25.-26. Nov, Munich

STN User Meetings

Hamburg, 23.10.2019
Milano, 23.10.2019
London, 05.11.2019

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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