Databases for Chemists and Chemical Engineers
MDL Databases: Frequently Asked Questions and Help
Frequently Asked Questions
- What is ISIS?
- ISIS is a client/server scientific
information system that supports the registrations, retrieval, display, and analysis
of chemical structures, reactions, 3D models, and related scientific information.
- What hardware and software is required for using the MDL files?
- Workstations must meet the following standards:
- Windows 95 / NT 4.0 or Macintosh PowerPC
- 16 MB RAM; 30 MB disk space
- Internet access
- Netscape 4.0 or Internet Explorer
- How are chemical structures represented by MDL?
- MDL leads the industry with their extensive chemical structure representation
— from 2D and 3D structures, to polymers and mixtures, to generic structures, to chemical
- What type of structure searching capabilities are available in MDL?
- Extensive structure searching, including
substructure, similarity, stereochemistry, 3D models, combinatorial libraries, reactions,
and much more, are combined with simultaneous data searching.
- What types of file formats are available in MDL?
- MDL’s published file formats for chemical structures, reactions, and
data have become de facto industry standards.
MDL’s CTfile Formats documentation
may be downloaded (registration required).
Help and Information
November 30, 2005