has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919899 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460364 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336420 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID246292154 |