has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336692 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919325 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460578 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID243763901 |