I'm not sure whether users of this forum are aware of the ChemSpider database but it is a database of 21.5 Million chemical entities with predicted parameters, is text and structure searchable and links out to original data sources for the data. Almost 150 data sources at present. (www.chemspider.com). There is an article in IUPAC's chemistry world about ChemSpider (http://www.iupac.org/publications/ci/20 ... pider.html)

A post on the blog last night explained how members of this community might get use out of the resource so I though I would share it here: http://www.chemspider.com/blog/how-peop ... pider.html