General Reference Resources

  • Chemsoc
    Published and maintained by the Royal Society of Chemistry. Includes a plethora of resources including a visual periodic table of elements, a timeline, events, society lists, career information, and recommended websites. May also use the "quicklinks" toolbar to find information on a specific type of chemistry.
  • Common Chemistry
    "This resource is helpful to non-chemists and others who know either a chemical name or a CAS Registry Number of a common everyday chemical and want to pair both pieces of information."
  • CRC HandbookCRC Handbook of Chemistry and Physics, 89th Edition (2008-2009)
    UIUC A ready-reference book covering the physical sciences.
  • A Quick Guide to Citing using the ACS Style Guide, 3rd Edition. From Nan Butkovich at the Pennsylvania State University Library. Supplement to the ACS Style Guide. Covers quick reference on how to cite books, conference proceedings, data sets, dissertations and theses, encyclopedias, journals, material safety data sheets, patents, preprints, SciFinder Scholar and other indexes, and websites.

Search Tools

  • Chemical Structure Lookup Service (CSLS)
    From the National Cancer Institute (NCI) at the National Institute of Health (NIH). Search in "39 million indexed structures from over 80 databases (27 million unique structures)." Search by chemical structure, text string, or file.
  • ChemRefer
    Free full text chemical and pharmaceutical literature search; may also search by drawing a structure.
  • eMolecules (formerly Chmoogle)
    An open access chemistry search engine where you can draw a structure or do a text search.
    Searches over 50 million pages of government science information. Can also browse and narrow by topic (i.e. Math, Physics & Chemistry; Chemistry and Chemicals; Materials)
  • Scirus: for scientific information only
    Search engine for science-specific information. Searches over 300 million web pages. Ability to save, email, or export results. Check out its search features and find out what resources it searches on the About Us page.
    A deep Web search engine that uses advanced "federated search technology" to submit your search query in real-time to other well-respected search engines and then collates, ranks, and drops duplicates of the results.

Periodic Tables

Medical and Biology Information

  • Current Protocols in BioinformaticsCurrent protocols in bioinformatics UIUC
    Provides "the experimentalist with insight into the types of data and protocols required to perform basic tasks in the area of bioinformatics...[also offers] insight into understanding and properly interpreting the data produced by these methods."
  • Current Protocols in ImmunologyCurrent protocols in immunology UIUC
    Covers the latest information in the field of immunology. Updated every three months. Includes reference resources.

  • Current Protocols in Molecular BiologyCurrent protocols in molecular biology UIUC
    Covers the latest developments in the field, including DNA. Updated every three months.

  • Current Protocols in PharmacologyCurrent protocols in pharmacology UIUC
    Collection of lab protocols; covers molecular, cellular, physiological, and chemical techniques. Updated every three months.
  • Entrez: The Life Sciences Search Engine
    Allows users to search across all NCBI (National Center for Biotechnology Information) database (including PubMed, PubChem, protein sequence database, data sets, online books, and the National Library of Medicine catalog).
  • MedlinePlus: Drugs and Supplements
    Provided by the United States Pharmacopoeia (USP) at the National Library of Medicine website. Includes information on prescription and over-the-counter drugs, supplements, and herbs.
  • PubChem
    From the National Institute of Health's National Library of Medicine. Includes three databases (PCSubstance, PCCompound, and PCBioAssay) and a structure search.
  • Public Library of Science (PLoS)
    Freely available journal articles covering biological and medical information. The new PLoS ONE includes articles on all scientific topics.
  • PubMed
    From the National Library of Medicine and the National Institutes of Health. Includes links to determine which articles are available through the UIUC library.
  • PubMed Central (UK)
    Free archive of life science journals.


  • Protein Data Bank
    Operated by the Research Collaboratory for Structural Bioinformatics (RCSB), formerly the Brookhaven National Laboratory Protein Database, the Protein Data Bank (PDB) is the single international repository for public data on the 3-dimensional structures of biological macromolecules. The contents are primarily experimental data derived from X-ray crystallography and NMR experiments.
  • Structural Classification of Proteins (SCOP)
    Provides a detailed, comprehensive description of the structural and evolutionary relationships between all proteins whose structures are known.


  • Amino Acids Catalog
    Provides symbol, molecular formula, molecular weight, isoelectric point (pH), CAS Registry Number, and a 3D molecular model for various amino acids.
  • ATHAS Data Bank of Thermal Properties
    Extensive tables of thermal properties for 200 linear macromolecules (polymers) and small molecules are provided.
  • Calculators On-Line Center: Chemistry
    A collection of subject-specific online calculators, databases, and other reference tools.
  • ChemSynthesis
  • Dielectric Constant Reference Guide
    Although the site only covers one property, it does cover about 1,500 varieties of substances.
  • Diffusion (Molecular) Resources (Arizona State University Library)
    Guide to print and electronic resources for diffusion coefficients and diffusivity.
  • KEGG Ligand Database
    A composite database currently consisting of COMPOUND, DRUG, GLYCAN, REACTION, RPAIR, and ENZYME databases.
  • Obituaries and Biographical Notes
    Lists of those published in Angewandte Chemie (1888-2004), Chemische Berichte (1918-1997) / European Journal of Inorganic Chemistry (1998), Helvetica Chemica Acta (1918-1992), Liebigs Annalen (1975-1997) / European Journal of Organic Chemistry (1998-2004).
  • School of Chemical Sciences Chemical Genealogy Database
    Traces the professional genealogy ("a person's intellectual line of descent via one's PhD advisor or mentor for one's highest non-honorary degree") of chemists associated with UIUC. Provides information on the accomplishments of the people included in the database.
  • Tables of Physical & Chemical Constants (Kaye & Laby)
    A free online version of the 16th Edition (1995), with updates. Includes chapters on units and fundamental constants, general physics, chemistry, atomic and nuclear physics, engineering data, statistical methods, lab safety, and quality assurance of measurements.