has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237918956 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460410 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391337287 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID245721477 |