has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336857 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919752 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460649 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID244392461 |