has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919261 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460510 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336591 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID244884852 |