has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237918971 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID246954104 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141459820 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336453 |