has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID244873865 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391337251 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919998 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141459982 |