has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919741 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460571 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID242945447 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336396 |