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CAS STNext's sophisticated retrieval lets you precisely and comprehensively find the information and knowledge you need in CAS STNext's collection of 100+ databases with a total of over 1.6 billion records.

A world of patent information - STNext's unparalleled offer

Patent databases on CAS STNext^® are key information resources for determining patentability, state of the art, infringement, and the legal status of the patents.

CAS STNext^® integrates the world’s largest and most important value-add and first level patent databases on one platform. And: Only on CAS STNext^® you can search patent information from Derwent (Clarivate), CAS, and the European Patent Office’s worldwide Patent Information Resource in one place:

Derwent WPI, CAplus, and INPADOC

In addition to these key databases, CAS STNext^® provides full-text patent databases from the European Patent Office (EPFULL), the United States Patent and Trademark Office (USPATFULL), the World Intellectual Property Organization (PCTFULL), the key Asian authorities and more

CAS STNext® - the unsurpassed source for chemical substance information

With CAS REGISTRY^SM, STNext^® provides the world’s most authoritative collection of disclosed substance information. The CAS REGISTRY^SM is a comprehensive collection of more than 160 million chemical substances and nearly 70 million bio-sequences extracted by CAS scientific analysts from journal articles, patents, and other sources dating back more than 150 years.  It grows by 40 thousand substances every day.

CAS Formulations (CASFORMS) is another unique database covering the chemistry of formulations in pharmaceuticals, agroscience and cosmetics, coatings, consumer goods, food and materials. The database brings together information from multiple sources including patents, journal articles supplier, regulatory and substance data in one solution to increase a formulator’s efficiency.

CAS STNext® provides access to other key substance databases, including CASREACT, USGENE^®, MARPAT^®, Elsevier´s REAXYSFILE, the Derwent Markush Resource (DWPIM), and the Derwent Chemistry Resource (DCR) – making CAS STNext® the most comprehensive source for substance information.

To support substance content, CAS STNext^® provides sophisticated substance searching capabilities including structure, property, sequence, and chemical name searching. After finding your substances of interest, CAS STNext® allows you to easily locate related references in the patent and scientific literature.

Premier Life Science Collection

Premier biomedical and pharmaceutical collections comprise EMBASE™, MEDLINE^®, BIOSIS, SciSearch, the Derwent Drug File, Elsevier´s ESBIOBASE, ADIS and IPA

Leading databases in agro- and food sciences are CABA, FSTA and AGRICOLA.

Extensive Engineering and Technology Collection

INSPEC^®, COMPENDEX and PQSCITECH lead the more than 25 databases covering all fields of engineering, technology and materials science.

For the complete CAS STNext^® content collection of more than 100 databases, go to
List of Databases
 

CAS STNext^® is the premier scientific IP information platform, connecting you to a comprehensive collection of global databases, scientist-curated content, and patent information with powerful precision search and analysis tools.

Getting started:
Recorded e-seminar for an introductory overview of CAS STNext^®
Quick Reference Card providing tips for getting started with the interface
Login to CAS STNext^®

In order to support STN users to migrate from the STN legacy platforms to CAS STNext^® a series of short video tutorials have been prepared by CAS and FIZ Karlsruhe. These videos help STN users to take full advantage of the benefits and capabilities of CAS STNext^®. For further questions please contact  the EMEA Customer Center or the CAS Customer Center.

CAS STNext^® provides seamless access to millions of original documents, patents and non-patent literature alike!
The CAS STNext^® Full Text Solution is accessible via a full-text link in the header of CAS STNext^® database records.
It consists of two services:

Electronic patent documents from five offices:

USPTO (U.S. Patent and Trademark Office), EPO  (European Patent Office),
CNIPA (China National Intellectual Property Administration),
JPO (Japanese Patent Office), KIPRIS (Korea Intellectual Property Rights Information Service)

The EPO service alone offers more than 90 million original patent documents from 60 patent offices.

If you need topical information in the areas of science, medicine, technology and patents, CAS IP Services (EMEA) is your ideal partner. Both customers without (professional) search experience and companies with staff shortages in the supply of information will benefit from a professional search carried out by our scientific staff.