has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID243852757 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141459800 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919989 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336443 |