has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919394 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460484 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336388 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID247283389 |