has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919531 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391337188 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID249340888 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460532 |