has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237956221 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID139425328 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID138227121 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID390955870 |