ChemSpider is a free chemical structure database providing fast access to over 130 million structures, properties and associated information. By integrating and linking compounds from more than 270 da
Most or all of the features are no longer available via the CDS/DL website since provision of the EPSRC UK national Chemical Database Service has been taken over by the Royal Society of Chemistry from
This is a cleaned and condensed version of the HMDB XML metabolites file from https://hmdb.ca/downloads, current version 5.0. The original zipped file (~1GB) extracts to 6.49 GB xml file. The full is