has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919897 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391337176 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID248179692 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460293 |