has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237918958 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336920 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460425 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID249373032 |