has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919398 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141459881 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID246268578 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336881 |