has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237918980 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460143 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID247389570 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336900 |