- CRC Handbook of Chemistry and Physics (web edition, limited to University of Chicago users)
- Combined Chemical Dictionaries
(web edition, limited to University of Chicago users)
- Includes Dictionary of Organic Compounds, Dictionary of Inorganic
and Organometallic Compounds, Dictionary of Analytical Reagents, Dictionary
of Natural Products and Dictionary of Pharmaceutical Substances)
- Includes Dictionary of Organic Compounds, Dictionary of Inorganic
and Organometallic Compounds, Dictionary of Analytical Reagents, Dictionary
of Natural Products and Dictionary of Pharmaceutical Substances)
- ChemFinder
This site serves as a search engine for a variety of data for chemical compounds - Landolt-Bornstein (Numerical Data and Functional Relationships in Science and Technology)
- Standard Reference Data (NIST)
- Thermodynamics Research Center
- Journal of Physical and Chemical Reference Data cumulative indexes
- NIST Chemistry WebBook
- AutoNom (draw a structure, get the IUPAC name; free access via ChemWeb.com, requires free registration for membership in ChemWeb)
- ACDLabs naming software (free download) Provides an IUPAC name based on structure