has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID243696927 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919004 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460265 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336569 |