has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237919477 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460275 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336649 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID248575436 |