Kasabi was an innovative RDF publishing platform from around 2011. Shortlived, and maybe just too early. I published two open datasets there. One was ChEMBL-RDF (see these posts). The second was a small data sets called ChemPedia, a open science effort to crowdsource chemical names. This is still very much needed, and possibly Wikidata could fill that gap, but it would first need to be able to handle all labels as statements itself.