has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919749 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460694 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID249328283 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336582 |