has PubChem normalized counterpart |
http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID237918957 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID141460100 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID243866520 http://rdf.ncbi.nlm.nih.gov/pubchem/substance/SID391336839 |