has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919987 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460176 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID247685851 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391337223 |