The CAS Source Index (CASSI) Search Tool is an online resource intended to support researchers and librarians who need accurate bibliographic information. This complimentary resource can be used to quickly and easily look up or confirm publication titles and abbreviations, as well as CODEN, ISBN, or ISSN codes.

PubChem is an open chemistry database at the National Institutes of Health (NIH) that contains chemical structures, identifiers, chemical and physical properties, biological activities, patents, health, safety, toxicity data, and many others.

ChemTube3D contains interactive 3D animations and structures, with supporting information for some of the most important topics covered during an undergraduate chemistry degree.