ChemSpider is a free database of chemical structures, chemical properties, NMR, IR, Raman, mass spectra, UV VIS, crystallography data.

This database provides rapid access to over 100 million structures from hundreds of data sources.

Users must provide their .mol files in a machine-readable format that can be interpreted by Inchi. The warehouse also indicates acceptance of files in sdf, excel, csv and tsv formats. Data can come from existing databases, as well as from companies or individual researchers.

To access: http: //www.chemspider.com/

For more information: https: //blogs.rsc.org/chemspider/2018/06/26/behind-the-scenes-at-chemspider/?doing_wp_cron=1589472533.3953649997711181640625