has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237997507 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141377232 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID245312165 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID392416908 |