# cas-stn > Publicly sourced profile assembled by Optimly, in the Optimly AI Brand Index. Last refreshed 2026-10-04. - **Business Profile:** https://optimly.ai/brand/cas-stn - **Dataset:** https://optimly.ai/brand/cas-stn.json - **Markdown:** https://optimly.ai/brand/cas-stn/llms.txt - **Official website:** https://cas-stn.com - **Slug:** cas-stn - **Categories:** data-analytics-business-intelligence, legal-technology, vertical-industry-software ## Overview - **Tagline:** Unparalleled comprehensiveness and accuracy of curated chemical substance, reaction, and patent information, combined with advanced search and analysis tools. Source: Brand's website (https://cas-stn.com) · 2026-10-04 - **Description:** CAS (Chemical Abstracts Service), a division of the American Chemical Society (ACS), provides scientific information solutions. STN is a premier online platform offered by CAS for searching and analyzing scientific and patent information, particularly in chemistry, biochemistry, and related sciences. Together, CAS STN represents a comprehensive suite of tools and databases for researchers, patent professionals, and scientists. Source: Brand's website (https://cas-stn.com) · 2026-10-04 ## Offerings - **Core capabilities:** - CAS Registry - SciFinder - STN (platform) - PatentPak - CAS Analytical Methods Source: Brand's website (https://cas-stn.com) · 2026-10-04 - **Pricing:** Subscription-based licensing with various tiers and institutional access options. Source: Brand's website (https://cas-stn.com) · 2026-10-04 ## Audience - **Target industry:** Pharmaceutical, chemical, and biotechnology industries; academic and research institutions; patent attorneys; government agencies; R&D professionals. Source: Brand's website (https://cas-stn.com) · 2026-10-04 ## Landscape - **Competitors:** - Clarivate - Elsevier - PatSnap - Questel Source: Brand's website (https://cas-stn.com) · 2026-10-04 Page last updated 2026-10-17.