Chemical Information Sources/SIRCh/Structure Searches
SIRCh: Selected Internet Resources for Chemistry
Free Web-Based Structure Searching
- ChemSpider
- PubChem Structure Search
- Chemical Structure Lookup Service (CSLS: pronounced "sizzles")
- eMolecules
- ChemIDplus Advanced (National Library of Medicine)
- Fisher Scientific
- ChemBioFinder Searching (from CambridgeSoft Corporation)
- Substructure Search of SRC's Pointer File (uses ChemS3)
- Bioscreening.com database
- R&D Chemicals
Biomolecular Sequence and Structure Searching
- Entrez, the Life Sciences Search Engine (NCBI)
- CAS Registry BLAST [PD]
- Protein Sequences in the CAS Registry File on STN--Exact and Pattern Searching [PDF]
- Nucleic Acid Sequences in the CAS Registry File on STN--Exact and Pattern Searching [PDF]
- Protein Data Bank (PDB)
- CATH (Class, Architecture, Topology, and Homologous Superfamily) Protein Structure Classification Database
- SDSC Biology Workbench: The WorkBench allows biologists to search many popular protein and nucleic acid sequence databases. Database searching is integrated with access to a wide variety of analysis and modeling tools, all within a point and click interface that eliminates file format compatibility problems.
- Algorithms & Thermodynamics for Nucleic Acid Folding, Hybridization & Melting Profile Prediction (Michael Zuker)
- Sequence Searching of Proteins & Nucleic Acids
Chemical Structure Searching on STN and SciFinder
- STN User Documentation (Complete List)
- Before You Begin A Structure Search on STN
- Tips for Building Structures for Substructure Searching
- Stereoisomer Searching on STN (STN Quick Reference Card)
- Structure Searching in CAS ONLINE Using STN Express: An Introductory Workshop (Grace Baysinger, Stanford University)
Beilstein
- CrossFire Beilstein Structure Searching (Andrea Twiss-Brooks, University of Chicago)