Getting Started

ChemSpider is a web-based database of small molecules, with associated data and links. The site is free to use, and you can search and access all of the available data on the site without registering an account. The data in ChemSpider has been supplied by various institutions and commercial companies.

Data in ChemSpider is curated on an ongoing basis by ChemSpider staff and users to ensure data integrity and data quality. ChemSpider has a wide user base which includes students, teachers, lecturers, scientists (chemists, biochemists, material, forensic, quality control, analysts), patent agents, publishers and chemical manufacturers.

We can help you find important data, such as…

Chemical structures

Aspirin structure

Interactive spectra


Crystallographic data


And more, including:

  • Names and identifiers
  • Literature references
  • Physical properties
  • Patents
  • Chemical suppliers
  • Links to specialist databases…

Finding data on ChemSpider

Name search

  • Systematic names
  • Synonyms
  • Trade names
  • Identifiers (molecular formulas, SMILES,
    InChIs, registry numbers)

  • more information…

Structure search

  • Create structure-based queries
  • Draw structures in the web page
  • Use structure files from your computer
  • Substructure searching
  • Similarity searching

  • more information…

Advanced searches

Combined searches, which can include:

  • Structure, substructure, or similarity searching
  • Names and identifiers
  • Intrinsic properties (MW, MF, etc…)
  • Physicochemical properties (melting point, boiling point, rule of 5…)
  • and more!

Getting involved

One of the key features of ChemSpider is that the data is updated and curated on an ongoing basis by the users. This ensures that the data remains relevant and can be shared with the rest of the scientific community. You can get involved, raising your profile and promoting your research.

Deposit Data

  • Chemical structures
  • Chemical properties
  • Spectra (NMR, IR, Raman, Mass Spectra, UV-Vis)
  • Crystallographic Information Files

Curate Data

  • Add names/identifiers
  • Correct Name-Structure associations
  • Add literature references
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