Links

Patents
Deutsches Patent und Markenamt
United States Patent and Trademark Office, US Patent Full-Text Database
freepatentsonline.com - a free online patents database: patents as pdf-files
needs registration only

Compound Data
US National Library of Medicine, ChemIDplus

Pharmacy, Medicine
U.S. Food and Drug Administration (FDA)
Zeitschrift für Chemotherapie (ZCT)
Pharmacopoeias (worldwide)

Toxicology
Vermont Safety Information Resources, Inc., Vermont SIRI M-SDS Collection

Microbiology
Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH
Index Fungorum
US National Center for Biotechnology Information, Taxonomy Browser